Both sides of politics come out in support of Bill Shorten

PARLIAMENTARY colleagues have come out in support of Labor leader Bill Shorten's decision to go public on rape allegations.

The allegations surfaced late last year with investigations by Victoria police finding no cause to charge Mr Shorten.

Communications Minister Malcolm Turnbull was confident that the Opposition Leader, who denied the allegations, had done the right thing by coming forward.

"I think you have to nail these things," he said on yesterday's Today Show. "It is very, very painful to be - to feel you are the subject of an unjust accusation, particularly a very serious one like that. I think Shorten has done the right thing."

Deputy Opposition leader Tanya Plibersek, speaking on the same show, said Mr Shorten should be allowed to draw a line under the situation now that the investigation had been concluded.

"He wanted to take it head-on and say 'I co-operated with the police, they've found I have no case to answer'," Ms Plibersek said.

"We now should be able to draw a line under it. It has been an incredibly stressful period I think for him and his family and no doubt everybody involved in this - it has been very stressful. But having been investigated, having had his name cleared, it is good now he can draw a line under it."

Prime Minister Tony Abbott declined to comment when asked about the incident yesterday.

"What I think on this one is that it happened a long time ago," he told an Adelaide radio station.

"Apparently it's been dealt with by the police and I don't think there's really anything more to say about it. It's a personal matter and I certainly wouldn't normally be commenting on personal matters."