AUSTRALIAN GOVERNMENT - CONSTITUTIONAL BACKGROUND
URL: http://www.spatialgovernance.com/governance/government/610-1A.htm
© John S. Cook - Created on 11 May 1997
Last modified 09/03/06 17:09 Australian EST

 

THE AUSTRALIAN CONSTITUTION AS A DOCUMENT

The Constitution as an Act of the British Parliament
The powers of the Australian Government derive mainly from the Commonwealth of Australia Constitution Act 1900. This Act of the British Parliament is also known by the reference (63 & 64 Vic., c.12) and refers to the 12th Act passed during the parliamentary session occurring in 63rd and 64th years in the reign (or regnal years) of Queen Victoria. The British Parliament passed this Act on 9 July 1900. An index to the provisions and the full text of the Constitution in Rich Text Format (RTF) are available on-line from the Australian Legal Information Institute (AUSTLII). SCALEplus, the legal information retrieval system of the Australian Attorney-General's Department, also contains a copies of the Constitution under the title of the Commonwealth of Australia Constitution Act.

The Constitution and Constitutional Monarchy
The Act at Section 1 gives its long title as: 'An Act to constitute the Commonwealth of Australia'. The Preamble includes the words:

Be it therefore enacted by the Queen's most Excellent Majesty, by and with the advice of the Lords Spiritual and Temporal, and the Commons, in this present Parliament assembled, and by the authority of the same, as follows:-

These words show clearly how Queen Victoria’s assent to the legislation occurred with the 'authority' and on the 'advice' of both houses of the Parliament. This accords with the principles of a constitutional monarchy established in seventeenth century Britain. In the absence of authority, advice and consent of the parliament, the Queen could not assent to legislation on any material issue without bringing the whole idea of a participative democracy into question.

Bringing the Constitution into Effect
Clause 3
of the Act gave authority for the Queen to bring the Constitution into operation by Proclamation. This authority was subject to the fulfillment of certain conditions and the advice of the Privy Council. One of these conditions foreshadowed the possible inclusion of Western Australia. The Proclamation appeared in the Commonwealth of Australia Gazette 1901, p.1. It set the date for commencement of the Act as 1 January 1901 being the first day of the twentieth century. The text of this proclamation includes Western Australia as part of the new Commonwealth of Australia and appears at p.70 of a PDF copy of the Constitution with other constitutional documents and explanatory notes.

Democratic Self Government
The Preamble also refers indirectly to the referenda held and democratic processes followed in the separate colonies prior to federation in the following terms:

WHEREAS the people of New South Wales, Victoria, South Australia, Queensland, and Tasmania, humbly relying on the blessing of Almighty God, have agreed to unite in one indissoluble Federal Commonwealth under the Crown of the United Kingdom of Great Britain and Ireland, and under the Constitution hereby established:

This compares with the leading statement 'We the people' in the US Constitution, ( The words ' we the people' are something like a rallying call in the US - Examples include the  We the People Foundation for Constitutional Education We the People Organization - see also www.google.com.au using we the people as an exact phrase )

References:
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Documenting a democracy: Australia's story - Home Page
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Australian Capital Territory - Seat of Government Acceptance Act 1909 (NSW) - covering cession of land area by the NSW Government to the Commonwealth Government for the seat of government | Seat of Government Acceptance Act 1909 (Cwlth) - covering acceptance of land now comprising the ACT

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Northern Territory - Northern Territory Surrender Act 1908 (SA) - surrender by the SA government of the area now known as the Northern Territory to the Commonwealth Government | Northern Territory Acceptance Act 1910 (Cwlth) - acceptance of what is now the Northern Territory as ceded by the government of South Australia

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WebLaw - a subject gateway to Australian legal resources - Home Page > Constitutional Law > Legislation - Educational > A guide to government and law in Australia - John Hirst, Discovering democracy: A guide to government and law in Australia, Carlton South, Vic.: Curriculum Corporation, 1998 -  written mainly for teachers but provides an useful introductory text at tertiary level comprising 113 pages in PDF

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John Pyke, Australian Constitutional Information Site - Home Page | John Kilcullen, Macquarie University, 'The Australian Constitution: a first reading' (2004)

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Australian Parliamentary Library, Internet References to Law

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Constitutional Centenary Foundation - National Council for the Centenary of Federation - Resources | Centenary of Federation Queensland - History |

THE EVOLUTION OF A CONSTITUTIONAL DEMOCRACY

The Culture of an Absolute Monarchy
The Australian Constitution embodies constitutional principles that evolved out more than a thousand years of English history. A major theme in this history is the change from the absolute monarchy that existed at the time of the Norman Conquest in 1066 to the constitutional monarchy that existed when the Australian Constitution came into being.

A prevalent idea  in ancient times was that an absolute authority resided in a king. Support for this idea depended partly on persuasive philosophical ideas about the natural order of things and the stratification of society into social groups. However, practical politics depended also on coercive elements of political power and that relied ultimately on being able to amass sufficient military force to deter any coalition of forces that might upset a king's authority. 

The Idea of a Divine Right of Kings
The idea of an inherent or god-given natural law in human affairs has prevailed since ancient times. Of similar ancient origin is the idea of a king as either being god-like or having a particular covenant with god. The Judeo-Christian tradition makes frequent reference to the good and bad kings of ancient times. The ceremony of the Coronation reinforces the idea of the monarch as defender of the law and a deliverer of justice and mercy. The style and title of Queen Elizabeth II under law in the UK refers to her position as:

Queen Elizabeth II by the Grace of God, Queen of this Realm and of Her other Realms and Territories, Head of the Commonwealth, Defender of the Faith.

In Australia, the royal style and title underwent some change during the Whitlam Government (See historical notes). The Royal Style and Titles Act 1973 refers to the Queen as:

Elizabeth the Second, by the Grace of God Queen of Australia and Her other Realms and Territories, Head of the Commonwealth.

Magna Carta
King John first issued the Magna Carta (or Great Charter) at Runnymede in 1215. The Charter made a formal declaration ensuring the rights of feudal lords; and extended guarantees concerning freedom of the church and respect for the customs of the towns. It also referred to human rights in trial by jury and habeas corpus. (Habeas corpus guards against arbitrary arrest and detention. It requires anyone detaining or holding  person in custody to produce that person before a court to decide whether they are held according to the law).

In effect, Magna Carta imposed an obligation on the King to maintain particular standards in dealing with his Lords. Breach of this obligation provided a moral justification for the Lords to  negate any oaths of allegiance and defy the authority of the King. Thus, Magna Carta became a rallying call whenever the actions of a reigning monarch brought revolution or rebellion into contemplation, as in the English and American Revolutions.

The Stuart Kings and Divine Right
When Queen Elizabeth I died without a direct heir, the succession passed in 1603 to the King James VI of Scotland who also became King James I of England. Some of the far reaching consequences were a merged or united kingdom between the English and Scottish realms. This union highlighted religious and cultural differences between England and Scotland.

The Monarch as a Dispenser of Justice
Historically, monarchs were seen as god-like in dispensing justice, as in the example of King Solomon. English law sees the monarch as the fount of justice. Criminal trials in particular invoke the name of the Queen although she herself has no direct role in any of them. The idea of the Queens Courts where Crown Prosecutors bring criminal actions in the name of the Crown is still present in the UK. Similarly, prisons are Her Majesty's Prisons, prisoners may be detained at Her Majesty's pleasure and prisoners may be granted Royal pardons. Judicial appointments occur on the advice of Ministers of the Crown. The terms 'coroner' and 'coronial inquiry' referred originally to the English Crown notwithstanding the words retain usage in republics such as the US.

The Monarch and Taxation
Under the feudal system, occupation of land occurred in exchange for a fee or rent paid in either or both money and service to the king. During the 14th century, a practice developed of summonsing commoners to sound out the acceptability of taxation proposals. Over time, commoners sought explanation of the purposes to which money would be put and auditing to see that past allocations were expended as agreed. Therein lies the origins of the approach in modern government where money bills originate in the lower house, the budget session deals with appropriation bills and the auditor general is a servant of the Parliament rather than the Executive.

Excesses of Absolute Rule
Abuses in raising finance led to a rallying call of 'no taxation without representation' . The Customs service grew to impose import  taxes on foreigners as distinct from citizens, or so it was argued. This argument is now unsustainable under modern theory about the incidence of taxation, since citizens as consumers probably do pay indirectly though increased costs on imported items.  Similarly, territorial aggrandizement through the the prosecution of foreign wars was difficult to justify as defence of the realm.

A monarch could use the resources of the Crown or State to corrupt the way in which the parliament can represent the voice of the people. Some of the avenues for abuse of power involved:
bulletrigging electoral boundaries
bulletbuying political favours by offering sinecures to particular members of parliament in exchange for favourable votes in Parliament
bulletattempting to silence members from criticising the executive by threats of arrest or litigation
bulletproroguing and refusing to call parliament to stifle parliamentary discussion on performance of the executive and to prevent any opportunity for the parliament to pass new laws

A monarch could could also interfere with judicial processes through avenues such as: 
bulletintimidating judicial offers by  interference with their terms of employment or payment
bulletmanipulating the jury system to intimidate jurors or get favoured people appointed as jurors
bulletgranting pardons to favoured persons who might receive sentences through a parliamentary or judicial process

The constitutional principles embodied in the doctrine of the separation of powers are aimed mainly at checking abuses of executive powers and asserting a principle of the supremacy of parliament.

References:
bulletSouthern Methodist University, Dallas, Texas - Home Page > B. Wheeler > Chivalry Encyclopedia > Ceremony > Coronation
bulletMagna Carta: US National Archives and Record Administration (NARA), Magna Carta, Magna Carta and its American Legacy, Declaration of Independence, Constitution of the United States, US Bill of Rights
bulletEnglish Revolution - the Civil War and the Restoration (1642-1660 ): Dr. E.L. Skip Knox, History of Western Civilization, Early Modern Europe, Boise State University, English Civil War | English Civil War resource pages | The English Civil War Society (ECWS) | European Enlightenment - The Case of England
bulletThe Glorious Revolution (1688): The Australian Capital Territory Legislation Register contains a copy of the Bill of Rights 1688. The Bill lists grievances against King James II and the remedies to these grievances provided the basis for constitutional reform that remain relevant to the present day. | UK Parliament - Home Page > House of Commons Information Office Fact Sheets > Fact Sheet G4 - The Glorious Revolution

THE DOCTRINE OF THE SEPARATION OF POWERS
AS A CONSTITUTIONAL PRINCIPLE

Origins of the Separation of Powers
Under the doctrine known as the separation of powers, special constitutional checks and balances exist to counter abuse of power, especially by executive government. Montesquieu (1689-1755) popularised the idea of a separation of powers as a constitutional principle in The Spirit of Laws (1748). However, the idea has earlier origins that may go back to antiquity. 

The English Revolution (often called the Glorious Revolution of 1688) revived interest in constitutional principles. A break with the constitution of the past occurred when James II absented himself from the seat of government and performed in a way that was deemed tantamount to abdication. John Locke (1632-1704), an ideologue for the revolutionary movement, published his Two Treatises on Civil Government anonymously in 1690. In his Second Treatise, Locke argued for government based on the sovereignty of the people. These ideas gained considerable popularity among an intelligentsia, coming as they did in an age of Enlightenment. The ideas were taken up vigorously in the British  Crown Colonies in North America and provided a rationale for the American and French Revolutions and the overthrow of monarchical government.

The Glorious Revolution and the Separation of Powers
Many of these principles derive from when  Parliamentary leaders invited William and Mary of Orange to take over the throne and rule according to a new form of government that closely resembles the constitutional form of monarchy that exists today. Important enactments included the Bill of Rights and the Act of Settlement 1701.

The Separation Of Powers Doctrine within the Structure of the Australian Constitution
The structure of the Australian Constitution (as shown in the List of Sections) follows the Separation of Powers as a constitutional doctrine. This separation identifies three branches of government as follows:
bulletthe Parliament – to make the laws - (refer to Chapter I)
bulletthe Executive – to administer the laws (refer to Chapter II
bulletthe Judicature – to adjudicate in the event of uncertainty, inconsistency, incoherence or ambiguity in the laws (refer to Chapter III)

A number of provisions exist to prevent undue influence of the Executive on members of parliament and members of the judiciary. The Constitution at s.44 provides that members of parliament are not to hold an office of profit under the Crown (excepting Ministers of the Crown and former members of the defence forces on whole or part pensions). The Electoral Act 1918 at s.65 describes the quota of members from a State or Territory and s.66 allows a deviation of 3.5% from the average in fixing the size of electorates. In effect this follows a 'one vote - one value' principle for representation in the lower house.  Members have a parliamentary privilege against liability and defamation for things said in parliament.

Members of the judiciary have protection from arbitrary dismissal by an Executive. Provision exists at  s.72  for dismissal of a judge by Governor General in Council on an address from both Houses of Parliament asking for the removal on grounds of proved misbehaviour or incapacity. Trial by jury applies for all indictable offences against any law of the Commonwealth. 

References:
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Separation of Powers - Origins and Commentary: Marshall Davies Lloyd, ' Polybius and the Founding Fathers: the separation of powers', (1998)

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US National Archives and Records Administration (NARA), Constitutional Issues: Separation of Powers

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US - Constitution Society - basic principles - Liberty Library of Constitutional Classics

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Queensland Government, Fact Sheet on Separation of Powers - Gerard Carney, 'Separation of powers in the Westminster System', (13 September 1993) -  in PDF comprising 9 pages.

CONSTITUTIONAL MONARCHY AND VICE REGAL REPRESENTATION
IN AUSTRALIAN GOVERNMENT

Monarchical Succession and the Constitution
Section 2
  of the Constitution provides that references to the Queen extend to her heirs and successors in the sovereignty of the United Kingdom. The official head of state is Queen Elizabeth II following the line of succession from Queen Victoria. The British Parliament determines the line of succession by the passing of statutes.

Monarchical Appointment of a Governor-General
Section 3 of the Constitution requires that the Queen shall appoint a Governor-General during her pleasure, and assign powers and functions to that Office subject to the Constitution. In practice, the Queen acts on the advice of the Prime Minister in appointing the Governor-General. The Parliamentary Library maintains a list of Governors-General since 1901.

Role of the Governor-General 
The role of the Governor-General derives largely from the Constitution. Under democratic institutions inherent in a constitutional monarchy, the Governor-General usually acts on the advice of the prime Minister or a responsible minister. The prime minister's authority derives from:
bulletthe vote of the people that determines the parliamentary majority, and
bulletthe selection processes within the majority party or coalition that elects the party leader.

Absence from the Jurisdiction
Protagonists of King James II claimed that his absence from the jurisdiction was tantamount to abdication. The Australian Constitution allows the Governor-General to appoint deputies to act in his absence. Continuity of authority in government means that these requirements need strict observance. 

References:

British Monarchy - Official Web Site - see especially The Monarchy Today: The Queen's Role in the Modern State

Australia - Australian Parliamentary Library - The Role of the Governor General, Governors General since 1901Birthplaces of Governors General -
Australian Parliament - Home > Senate > Publications - Index > The Constitution and Convention Debates

Australian Monarchist League - Home Page > Articles and papers on constitutional monarchy

VICE REGAL FUNCTIONS IN AUSTRALIAN GOVERNMENT

Governor-General
and the Parliament
Governor-General
and the Executive
Governor-General
and the Judiciary
The Governor General has a number of duties associated with the running of Parliament as an institution. These duties arise as a direct requirement of the constitution or the operation of conventional practices and include:
bulletIssuing writs for House of Representatives elections (s.32) (State governors issue writs for elections in the Senate being the 'States House' (s.12)
bulletSummonsing newly elected members to the first sitting of a new parliament (s.5)
bulletOpening a new parliament - addressing a new parliament on the direction of the newly-formed government's legislative program
bulletproroguing - temporary suspensions (s.28)
bulletDissolving parliament in preparation for calling elections and forming a new government (s.28) - the Senate should normally continue but may be dissolved under a double dissolution (s.57)
bulletAssenting (or refusing assent) to proposed legislation, or reserving a law for the Queen's pleasure (s.58).
bulletCommissioning of officers with special duties to the parliament (as distinct from the Executive) such as the auditor general and Ombudsman
In Australia, the Governor-General is responsible for the Great Seal of the Commonwealth under the Letters Patent of 29 October 1900.

The Governor General has duties in relation to Executive Council involving a number of formal requirements under the Constitution and various Acts of Parliament. These duties include:
bulletAppointing and dismissing members of the Executive Council (s.62) ( Under s.64, ministers of state shall be members of Executive Council)
bulletActing as Commander in Chief of the Army and Navy (s.68)
bulletAppointing  and removing non-statutory public servants (ss.32, 64 and 67)
bulletAppointing  judges (s.72)
bulletIssuing proclamations, orders-in-council, by-laws, ordinances and other delegated legislation in accordance with specific authorities contained in various Acts of Parliament
bulletAwarding honours on behalf of the Australian Government

In making appointments, the Governor General carries out the formal act of appointing whereas Ministers of the Crown carry out the political act of choosing and advising the Governor general who to appoint. In appointing the Prime Minister, the Governor General relies on representations of the person claiming to lead the party having the majority in the lower house of parliament. 

Historically, the monarch was seen as someone responsible for delivering justice to the people. The Governor-General in Council acts on the advice of ministers in the following:
bulletAppointing  judges (s.72)
bulletIssuing pardons

Reserve Powers of
the Governor-General

Arguably, the Governor General has a discretion of not accepting advice of a minister and even dismissing a prime minister. However, the stability and authority of government depends on the reasons being powerfully convincing to the voting public at large.

If a Governor-General refuses to accept the advice of a prime minister, the prime minister can resign. An  alternative political personage  may be unable to command a majority in parliament to enable the government to function. The Governor-General could appoint a care-taker government pending elections. However, if the electorate re-elects the prime minister who resigned, the position of the Governor-general becomes untenable. 

References:
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Australian Government, Governor-General of the Commonwealth of Australia - Home Page

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Parliament of Australia - Home Page > Site map > Who's Who > Role of the Governor-General | Susan Dowling, Law and Bills Digest Group, 'The reserve powers of the Governor-General', Research Note 25 1997-98, (23 January 1997)

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Australianpolitics.com > Home Page > Constitution > Governor-General > Powers of the Governor-General > Whitlam Dismissal

PRINCIPLES OF FEDERALISM

General Principles of Federalism
Federal systems of government follow a number of general principles in achieving a political union. The following list indicates the general tenor of a federal system, but different federal systems may also exhibit ideas pertaining to particular political situations and compromises:
bulletThe notion that former self-governing regions should combine to recognise a larger entity as an expression of national identity. Generally this identification of nationhood reflects in an improved capacity for national defence, and an ability to negotiate and be recognised internationally. This includes a capacity to enter into treaty obligations.
bulletThe notion of each region - a state or province - involved in the federation as co-equal in power with other regions and with central government.
bulletThe existence of institutions to provide government at local level
bulletDistribution of power so that both central and regional institutions impact directly on individual citizens. Thus, citizens may be subject to state laws within each state as well as federal laws that are common to all states in the federation.
bulletDistribution of power is the subject of a constitutional agreement - usually written - which is rigid in terms of disallowing amendment by a region or combinations of regions. The constitutional agreement does not have a mechanism for regions to secede from the federation unless specifically authorised
bulletExistence of rules for resolving conflict between the centre and the regions
bulletRules to be interpreted and policed by a judicial authority
Division of Powers
The enumeration of federal powers in the Australian Constitution at s.51 effectively divides the powers of the Commonwealth from those of the States. The federal powers are as nominated - the States retain what powers remain - that is, the residual powers. This division of powers within a federal system is conceptually quite distinct from the separation of powers that exists as a constitutional principle whether or not federalism is involved. 

Constitutional Interpretation
The division of powers needs interpretation from time to time, often through the need for controls not envisaged at the time of making the Constitution. Accordingly, interpretation goes beyond trying to discover the intention of the parties who made the Constitution and into a coherent . The High Court of Australia has sole jurisdiction in deciding matters of interpretation regarding the constitution.

Constitutional Change
High Court decisions may resolve a problem of interpretation but fail to provide satisfaction politically. Accordingly, some mechanism needs to exist to change the agreement between the States over the powers of the central government. The Australian Constitution provides for a change to the Constitution by a referendum that is passed by a majority of electors in a majority of States.

References:

Australian Government, 

DIVISION OF POWERS BETWEEN COMMONWEALTH AND STATES

Problems in a Division of Powers
Matters that are clearly important beyond state  boundaries include interstate and international commerce, transport and communication, customs, quarantine, external relations with other nations and national defence. Under the Australian Constitution, 
s.51 sets out the various matters that were seen at the time as appropriate powers for a central government in 1900.

While s.51 may appear to be relatively discrete in separating federal and state powers, more complex issues may overlap to require consideration by both State and Federal Governments. As an example, plaintiffs in the the Murphyores decision of the High Court in 1976 held mining leases under Queensland laws allowing extraction of mineral sands concentrates on Fraser Island. The responsible federal minister refused issue of an export license for the minerals pending enquiry involving environmental impact assessment of the mining operation.

The High Court held that statutes passed by the Commonwealth Government were within the powers conferred by s.51 of the Constitution. They allowed ministerial discretion in permitting or prohibiting an export. It was thus within the federal power and the proper exercise of a ministerial discretion to consider criteria or conditions for giving an export approval. Whether the criteria involved environmental impact assessment or some other matter was irrelevant in so far as the validity of the federal powers were concerned.

The effect in the Murphyores case was not so much to invalidate any Queensland law as to show that permission by both State and Federal authorities was necessary to ensure economic viability of the mining operation. The increasing complexity and sophistication of modern developments makes it more likely that developers will need to deal with governments at various levels. Moreover, appeals against decisions of governments may be available in more than one direction within the State and Federal court systems.

The Increasing Need for Federal/State Cooperation
Increasingly, matters are no longer easily confinable within the borders of a State. Seemingly local matters such as road drainage may have national and international ramifications if it leads to pollution beyond the State borders and into international waters. Dealing with other nations becomes an external power and is clearly a federal matter. Matters that have involve both Federal and State authorities and include:
bulletmicroeconomic reform - involving Australia as a member of the World Trade organisation and membership obligations involving microeconomic reform with far reaching implications for State and local governments, in providing physical public infrastructure, for example
bulletenvironmental issues - where matters such as Australia ratifying the Kyoto protocols on greenhouse gas emissions has important implications for local and regional development and, arguably, also for Australia's reputation as a trading nation and responsible citizen of the world
bullethuman rights - in anti-discrimination legislation of various kinds; in rights to community participation including access to government information; and rights of privacy in personal information

The available mechanisms for increasing Federal/State cooperation seem to reside in:
bulletUnanimous and workable agreement between the Commonwealth and States (usually arrived at in Australia by protocols established within the Council of Australian Governments (COAG))
bulletConstitutional change that requires referenda according to rules set out in the Constitution

 

  References:

Open Learning Australia, Civics > Citizenship and Australian Democracy > Australian Democracy: Rights, Responsibilities, Resources

PROBLEMS OF MERGING WESTMINSTER TRADITIONS WITH FEDERALISM

The Upper House in the Westminster Tradition
In the Westminster tradition, the House of Lords as the Upper House of the British Parliament cannot claim to be democratically elected. Some of its members inherit their positions as hereditary peers. The monarch appoints other members to life peerages on the basis of advice from the Prime Minister representing the government of the day.

Supposedly, the upper house serves to review and pass legislation initiated in the House of Commons. However,  tension arises if a lower house elected on a popular mandate to implement a particular legislative program finds its efforts frustrated by obstructionism in an upper house that is not democratically elected. In the absence of constitutional limits on the number of members who can sit in the upper house, the government of the day could recommend that the monarch appoint members to the upper house. These appointments could be persons whose political views may find sympathy with the government of the day. However, this merely exacerbates the problem with each change in political persuasion of the government of the day. The workability of this system depends on the upper house maintaining its respectability as a house of review and exercising moderation in dealing with legislation initiated by a government with a mandate from the electorate. This glosses over questions of what mandate is actually given, given the multifarious nature of the platforms on which parties win elections.

Section 53 of the Constitution makes it clear that bills related to government finance are to originate in the lower house. This follows a Westminster convention with origins dating back to fourteenth century England. 

The Upper House in the United States Tradition
Originally, the United States of America involved a federation of thirteen former British Crown Colonies. Over time, the US acquired additional territories and constituted new states. Nowadays, there are 50 states in the Union. The Congress or upper house comprise two senators from each state. Under this system, the upper house has some claim to democracy, notwithstanding its concession to smaller states to make the federal compact workable. Giving Senators a voting power based on equality of states  makes the Senate a 'states house'. However, the tendency is for state issues to take second place to party political issues.

In so far as the American Constitution related to a federal system, it created an Upper House that differed from the English House of Lords.

Influences on the Australian Constitution
The Australian federation involved six former self governing Crown Colonies. The concern was that a franchise involving 'one vote one value' applied uniformly across Australia would advantage the more populous states at the expense of less populous states. The remedy adopted in the Constitution was to give each State an equal number of Senators. Perhaps the expectation was that Senators would vote along State lines. However, the reality is that disciplined voting occurs along party lines. Moreover, differences in the systems that elect members to the upper and lower houses gives no guarantee that the majorities in upper and lower houses will follow the same political persuasion.

References:

US Senate - Home > Reference Home > Virtual Reference Desk > Constitution