Yesterday, Ishamel Kalsakau moved the motion in an attempt to remove Joe Natuman from attending any session ahead of a court case next month.
Mr Natuman faces trial for conspiracy relating to a 2015 decision to call on police investigators to cease a mutiny probe into a former police commissioner.
Mr Kalsakau said he spoke to the speaker, Esmon Simon, about the motion on Wednesday, but it was rejected in parliament yesterday.