Victorian MP Will Fowles arrested and released without charge by sex crime squad detectives

Labor MP who quit the party room in August strenuously denies the assault allegation

Detectives from Victoria's sex crime squad arrested and interviewed the state MP Will Fowles over a serious" assault allegation before releasing him without charge earlier this month, police have confirmed.

In August, Fowles had resigned from the parliamentary Labor party over the alleged incident at the request of the then premier, Daniel Andrews. Andrews had described the allegation - which Fowles strenuously denies - as a serious assault".

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