▁government ▁will ▁usually ▁be ▁given ▁six ▁months ▁to ▁respond ▁to ▁the ▁committee ' s ▁recommend ations . ▁As ▁they ▁need ▁as ▁broad ▁an ▁understanding ▁as ▁possible ▁of ▁the ▁issues ▁at ▁hand , ▁comm itte es ▁may ▁perform ▁in qui ries ▁with ▁the ▁authority ▁to ▁sub po ena ▁documents ▁and ▁sum mon ▁witness es . ▁This ▁ass ists ▁with ▁research ▁and ▁is ▁a ▁means ▁of ▁holding ▁parties ▁to ▁account . ▁Comm itte es ▁have ▁broad ▁powers ▁when ▁performing ▁in qui ries ▁although ▁there ▁are ▁some ▁legal ▁prote ctions ▁in ▁place ▁for ▁witness es , ▁similar ▁to ▁those ▁for ▁witness es ▁in ▁the ▁jud icial ▁system . ▁ ▁The ▁different ▁types ▁of ▁comm itte es ▁are : ▁joint ▁investig atory ▁comm itte es , ▁compr ising ▁members ▁of ▁both ▁houses , ▁standing ▁comm itte es , ▁compr ising ▁members ▁of ▁the ▁Legisl ative ▁Council , ▁select ▁comm itte es , ▁compr ising ▁members ▁of ▁one ▁house ▁or ▁the ▁other , ▁and ▁domestic ▁comm itte es , ▁which ▁are ▁generally ▁closed ▁to ▁the ▁public ▁as ▁they ▁concern ▁matters ▁of ▁the ▁parliament ▁itself . ▁ ▁Parliament ' s ▁current ▁comm itte es ▁are : ▁ ▁J oint ▁comm itte es ▁ ▁Dis put e ▁Resol ution ▁ ▁Elect oral ▁O vers ight ▁ ▁Integr ity ▁and ▁O vers ight ▁ ▁Public ▁Account s ▁and ▁Est im ates ▁ ▁Sc rut iny ▁of ▁Act s ▁and ▁Reg ulations ▁ ▁Legisl ative ▁Council ▁comm itte es ▁ ▁Econom y ▁and ▁In frastr ucture ▁ ▁Environment ▁and ▁Pl anning ▁