Police in Bosnia's sub-state entity the Republika Srpska (RS) detained former cop Dragan Sarenac in the southern town of Trebinje on Friday.
The court ruled Monday that he should be detained for fear he could destroy or conceal evidence, influence witnesses or repeat the crime he is accused of.
Sarenac's case is the latest development in the police operation “Maska” (Mask) - a crackdown on a narco gang that allegedly trafficked marijuana and cocaine from Trebinje to the seasidetown of Dubrovnik, the so-called jewel of the Adriatic, now popular with Western tourists.
The police operation, launched in November 2014, has resulted in a number of arrests and raids.
On May 21, 2015, RS police raided 18 locations: 16 of them in Trebinje, one in Bosnian capital Sarajevo, and another in Banja Luka.
Police seized more than two kilograms of marijuana, six grams of cocaine and 1,750 cartons containing 200 cigarettes each, thought to be destined for smuggling. They also confiscated mobile phones, five vehicles and four automatic guns.
17 people were arrested at the time, and RS police chief Gojko Vasic confirmed that four of them were active RS police officers. Police claimed the group had strong ties to drug trafficking gangs in Dubrovnik who distributed the drugs locally.
The same day, Croatian police raided 10 locations in Dubrovnik, arresting seven people whom they believe cooperated with the Bosnian drug trafficking group as part of an ongoing operation “Gladius”.
Sarenac is the latest suspect in the case to be arrested. He has not yet givena public statement.
The investigation continues.