Sabin is chairman of Parliament's law and order select committee. His boss, prime Minister John Key indicated this week he was “happy” for the Northland MP to remain in the job. He is refusing to confirm Sabin is under investigation or comment on the second-term MP's future.
So little is know about the alleged investigation, that it is hard to be categorical about what should happen. Generally I think it is best to play it safe and do a stand down. When there were allegations against Darren Hughes, I think Labour erred by not standing him down immediately.
But it is unknown if these allegations are anywhere of the same seriousness, and whether the complainant is credible. I recall a parent at an auckland school make an assault allegation against Alfred Ngaro, and it was very obvious from the outset he was doing it just as part of his campaign against the school generally.Standing Alfred down would have been inappropriate.
Whether the allegations against Sabin are serious and credible enough to warrant a stand down, is not yet publicly known. But as he is Chair of the law & order Select Committee, I would have thought it is best to err on the side of caution.