PARLIAMENT No action was taken against almost two-thirds of police personnel investigated for involvement in crime for the last five years.

Of the 3,677 cases investigated from 2010 to 2015, 2,312 cases were marked as 'No Further Action' (NFA), Home Minister Ahmad Zahid Hamidi said in a written parliamentary reply today.

He said 521 police personnel have been charged while 844 cases are still under probe.

He added the police as the main enforcement agency in Malaysia practices zero tolerance of crime within the police force.

"Investigations will be conducted transparently and fairly without consideration for the personnel's position or rank if there are reports or complaints about involvement in abuse of power of criminal activities," he said.

Ahmad Zahid added that the police force's Integrity and Standards Compliance Department constantly undertake measures to ensure members of the force abide by the rules and laws.

He said the measures include proactive spot checks on personnel on the front line and undercover work to observe if those in the field are complying with rules and instructions.

Furthermore more, urine tests are also conducted on police personnel to ensure that they are not using drugs, he said.

Other measures include anti-corruption campaigns and corrective action through the religion and counselling division.