One of the senior members of Papua New Guinea's Opposition says it's taken the parliamentary Speaker to court because he refuses to follow House rules.
Jeffrey Nape has appeared in court charged with breaching the constitution by presiding over parliament last July when he was acting governor general.
A former deputy prime minister, Sir Puka Temu, says Mr Nape has continually flouted standing orders, and blocking an Opposition motion of no confidence in the government is one example.
"For us it's as clear as crystal, section 95, sub-section four of the constitution has not been complied with by the Speaker. He should have allowed an acting Speaker to have presided over the session on the 20th but he didn't because the government knew that we were going to move a motion against them so they brought the Speaker in to fight the motion which is what they normally do."
Sir Puka Temu says the Opposition's also considering moving a motion of no confidence against Jeffrey Nape when parliament sits again on Tuesday.