Pressure is growing on Portsmouth South MP Mike Hancock after a report found "compelling" evidence of "serious and unwelcome sexual behaviour" towards a woman constituent.
Mr Hancock voluntarily resigned the Lib Dem whip last year to contest a High Court civil action alleging sexual impropriety.
This week the MP was suspended from the Lib Dem group of Portsmouth City Council where he also serves.
Police decided he had no case to answer, but a report commissioned by Portsmouth City Council prompted the Lib Dems to take action.
The alleged victim in the case told ITV News that she does not believe the party has taken her claims seriously.
Mr Hancock denies all of the allegations against him.