For forensic verification, the police would soon take voice tests of 10 cops, suspected to be involved in the smuggling of cattle.
The additional director general of police (operations) V Kamaraja told Hindustan Times that the accused policemen below the rank of inspector and posted in Karnal district.
Kamaraja said that the activities of the accused cops were being monitored secretly for the last few weeks.
Last week, a case was registered under the Punjab Prohibition of Cow Slaughter Act, Prevention of Corruption and various sections of the Indian Penal Code (IPC) against the cops at Civil Lines police station here.
Kamaraja said that names of the suspects could not be divulged as the investigators were preparing a watertight case.
Kamaraja said checking illegal smuggling of cattle to Uttar Pradesh is one of the challenges before the state police as could take a communal turn.
It is for the first time that the authorities accepted the involvement of cops and booked them.
"Involvement of police is always suspected in such cases but the accused will not be spared. Role of several other cops is also under close watch and more may be booked in the similar cases," he said.
ADGP clarified that no politician was found connected with the mafia involved in cow smuggling.
"During interrogation of those caught with truck loaded with cows named some cops for patronage. We have recorded telephonic conversation of the accused cops wherein they can be heard talking to cow smugglers on safe routes, bribes etc. Voice samples of these accused is needed to be authenticated by the forensic to initiate a legal and departmental action against them," he said.
Kamaraja, known as a tough task master, said that he had full information how much bribe was taken by the accused. He said that Karnal was the most sensitive place.
"We have evidence that cops took money in lieu of tipping smugglers of safe routes," he said.