Members of the police force will launch an unofficial boycott against the news media today by not buying newspapers.
The campaign, launched through telephone text messages and Facebook, is in retaliation against the Hong Kong Journalists Association's call to journalists to wear black today.
The association is protesting against what it says are increasingly harsh police restrictions imposed on reporters working in public places.
A senior police inspector confirmed a campaign message had been circulating among colleagues and he had received it.
He said the boycott appeared to be supported by many junior officers working at the front line.
'I guess maybe 60 to 70 per cent in the rank and file will join the boycott,' he said, adding that he did not personally endorse the campaign as it could escalate into a stand-off.