The police force has drafted a code of conduct to remind officers of the standards of behaviour expected of them, both on and off duty.
The draft code - revealed a day after Senior Superintendent Sin Kam-wah was jailed for three years for accepting free sex services - includes a reminder to avoid undesirable associations.
But frontline officers said that it failed to address the problem of senior officers being subjected to more relaxed rules in disciplinary proceedings.
The code, drafted by a sub-committee of the police anti-corruption steering committee, has been released for consultation among officers' representatives.
It will be circulated throughout the force after it is endorsed by top officers.
A member of the sub-committee, Chief Superintendent Robin Tse Shu-chun, said the code listed fundamental guiding principles, including the need to exercise prudent financial management and to avoid undesirable association and situations in which a conflict of interests might arise.
The code also reminds officers of the need to enforce the law impartially, respect human rights and not to abuse their power.