All the arrested were found to be operating in the same drug syndicate.
The raids were conducted on Wednesday and Thursday (Jan 10 and 11) in the city here, as well as in Johor and Negri Sembilan, by officers from the Special Tactical Intelligence Narcotics Group (STING) and Narcotics Crime Investigation Department (NCID).
During a press conference at the Travers police station here Friday, NCID director Comm Datuk Seri Mohmad Salleh said that the policeman was believed to have been an informant and drug dealer for the syndicate.
He added that all eight members of the syndicate were remanded for seven days starting Friday.
Investigations are still ongoing to determine how long the syndicate had been active.
Law enforcers also found around 50 9mm bullets. Sources said that the bullets were also found in Setapak.
Around RM2.1mil in cash as well as a variety of drugs including 10.3kg of syabu were also seized during the raid in Sri Petaling.
The estimated value of the drugs is RM721,000.