▁were ▁themselves ▁passed ▁by ▁such ▁major ities ▁it ▁is ▁unlikely ▁that ▁the ▁cla uses ▁could ▁not ▁simply ▁be ▁removed ▁by ▁an ▁absolute ▁majority ▁in ▁both ▁ch amb ers ▁at ▁a ▁later ▁date . ▁ ▁Parliament ▁undert akes ▁investig ative ▁and ▁research ▁roles . ▁Each ▁house ▁has ▁a ▁number ▁of ▁comm itte es ▁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 ▁assist ed ▁by ▁the ▁fact ▁that ▁comm itte es ▁include ▁members ▁of ▁more ▁than ▁one ▁political ▁party . ▁Some ▁of ▁the ▁committee ▁work ▁is ▁carried ▁out ▁by ▁the ▁J oint ▁Comm itte es ▁which ▁consist ▁of ▁members ▁from ▁all ▁sides ▁of ▁politics ▁and ▁from ▁both ▁ch amb ers . ▁Like ▁the ▁parliament , ▁the ▁comm itte es ▁ce ase ▁to ▁exist ▁when ▁the ▁parliament ▁is ▁dissol ved ▁by ▁the ▁governor , ▁and ▁need ▁to ▁be ▁re created ▁after ▁each ▁general ▁election . ▁This ▁means ▁that ▁often ▁the ▁names ▁and ▁juris diction ▁of ▁the ▁comm itte es ▁are ▁changed . ▁ ▁The ▁houses ▁provide ▁o vers ight ▁of ▁the ▁government ▁of ▁the ▁day . ▁Comm itte es ▁may ▁also ▁investigate ▁the ▁effect iveness ▁of ▁existing ▁laws ▁and ▁reg ulations . ▁Similarly , ▁parliament ary ▁comm itte es ▁may ▁also ▁investigate ▁potential ▁bre aches ▁of ▁law ▁or ▁convent ions ▁by ▁the ▁government . ▁General ▁practice ▁is ▁that ▁comm itte es ▁are ▁given ▁two ▁weeks ▁to ▁investigate ▁potential ▁impact s ▁on ▁the ▁wider