He said although the second urine test by the 54-year-old was negative, police could not use the result.

“Police are still waiting for the pathology report of the assemblyman’s urine sample to ascertain whether it is negative or positive. We are also completing the investigation paper on the case.

“Based on news reports, his second urine test at a private clinic came out negative for drugs. It is his right (to do a second test) as our investigation is based on the pathology results, which are expected to be obtained in one to three months,” he said when contacted by Bernama today.

Pasir Bedamar assemblyman, Terence Naidu, who was detained with several others at an entertainment centre in Perai near here on Jan 13, claimed that the second urine test done at a private clinic in Penang turned out negative.

Terence’s lawyer, Ramkarpal Singh was reported to have said that the test was conducted on Jan 15, a day after his client was released on police bail.

Based on the development, further investigations should be made by police immediately in the interests of justice, he said.

Mustafa said police were conducting further investigations into the case, including a report made by the assemblyman, who claimed that his drink had been spiked with drugs and topped up when he went to the restroom in the karaoke outlet.

“Police are conducting a thorough probe before submitting the investigation paper to the deputy public prosecutor for further action,” he said.

He said police were still waiting for the pathology reports of the 35 other individuals, who included two policemen, who also tested positive when arrested during the raid.

The policemen in question are from the Perak and Penang contingent police headquarters.

During the raid on an entertainment centre in Perai, a total of 48 people were arrested, with 36 of them related to narcotics cases while 12 others were linked to criminal cases.