However, if a criminal offence is disclosed, the police may investigate. But this requires a case-by-case assessment of the nature and circumstances of the conduct in question.
"For example, an offence of public nuisance may be made out if the offender’s act causes any injury, danger, or annoyance to the public," she said.
For his offence of public nuisance, Zhou could have been jailed for up to three months, fined up to S$2,000 or both.