not be amended without a public referendum. However, since neither of these requirements were themselves passed by such majorities it is unlikely that the clauses could not simply be removed by an absolute majority in both chambers at a later date. Parliament undertakes investigative and research roles. Each house has a number of committees that investigate proposed laws in detail before they are considered by the whole house. They may be formed for research purposes or to seek community input. This function is assisted by the fact that committees include members of more than one political party. Some of the committee work is carried out by the Joint Committees which consist of members from all sides of politics and from both chambers. Like the parliament, the committees cease to exist when the parliament is dissolved by the governor, and need to be recreated after each general election. This means that often the names and jurisdiction of the committees are changed. The houses provide oversight of the government of the day. Committees may also investigate the effectiveness of existing laws and regulations. Similarly, parliamentary committees may also investigate potential breaches of law or conventions by the government. General practice is that committees are given two weeks to investigate potential impacts on the wider community any bill may have as part of a bill's second reading within a house. Conflict between the Houses The Victorian Parliament's means of resolving disputes between the two houses entails a process modelled on the Australian Parliament's. However, the process also includes additional steps and modifications. A bill that is passed by the Assembly but rejected by the council, termed a "Disputed Bill" may be amended by the council and returned to the Assembly within 2 months. If the Assembly does not endorse the amendments then a dispute resolution committee may be formed. This process does not apply to ordinary appropriation bills, which need only pass the Legislative Assembly. The committee must consist of 7 members from the Assembly and 5 from the council, each appointed by their respective house. This committee is often formed following an election in anticipation of its usage later. The committee is given 30 days to resolve the dispute in secret and then present their compromise bill to Parliament. If the committee either cannot reach an agreement, or the parliament does not pass the committee's suggestion, then the bill is termed a