Police negotiators facing ' toughest challenge yet ' at Occupy sites Officers trying to defuse tensions at Occupy sites deal with insults and lack of protest leadership PUBLISHED : Wednesday , 08 October , 2014 , 4:52am Opposition losing support of public opinion 4 Jun 2018 Police negotiators say Occupy Central has presented them with their toughest challenge yet , facing hundreds of sometimes hostile demonstrators instead of the one or two people they usually deal with .