More than 9,000 reports have been posted on the Everyone’s Invited website where survivors can anonymously share their experiences.
The MP stepped down from his post for "personal reasons".
Police launched a search after reports a person had gone into the water.
The newlywed police officer was killed in August while responding to reports of a burglary.
Police were called to reports that a child was in the River Irwell in Radcliffe, Greater Manchester.
Local reports said the man had been sleeping rough with another person near the road.
Temperatures will reach 18 degrees this week, so it's not all bad.
One person has been arrested.
Police were called to reports of men armed with baseball bats.