Police Minister Peter Ryan says it is not appropriate for the State Government to interfere in the running of Victoria Police.

Earlier this year, Premier Ted Baillieu's chief of staff Michael Kapel met with outgoing deputy commissioner, Sir Ken Jones, without Mr Ryan's knowledge.

Mr Ryan says he would have preferred if the meeting did not happen.

"We have a chief commissioner of police. If there are issues that need to be raised with the appropriate authorities in the form of the OPI and the ombudsman, they ought to be raised accordingly," he said.

"Otherwise, issues around the running of the force are in the hands of the chief commissioner of police. That is the way it should be."

Mr Ryan says he has refused to meet with Sir Ken in the past.

"I have been approached, independent of Sir Ken, but I have been asked to meet with him and I have declined," he said.

"I have done so on the basis that as a matter of first principles, I don't think it's the right thing for me to do."

Opposition leader Daniel Andrews says the Premier must explain why the meeting was held.

"This is political interference. This is inappropriate," he said on ABC Local Radio.

"The Premier needs to come out of hiding and account for what his chief of staff was doing for two hours having secret meetings with Sir Ken Jones."

The Age newspaper reported on Friday that the OPI undertook police surveillance of Sir Ken and also monitored staffers in the Baillieu Government.

Police Chief Commissioner Simon Overland has never publicly explained why he asked Sir Ken to leave his post months before his resignation was scheduled to take effect.