See this link.
http://news.omy.sg/News/Local%2BNews/Story/OMYStory201003051525-133201.html


I don't think it's the full story. Why would passer-by want to confront the police for some stranger? Something else must have happened that is not reported? What else did the police do?

My friend say that there's been raid in Geylang everyday. All businesses, legal and illegal, are affected. A hungry man is an angry man, he said.