The FIR was registered yesterday by Delhi Police's vigilance department which has a dedicated police station to probe cases of corruption and indiscipline in the force.
Police has asked the ACB to share with it all the evidences regarding the case and have also contacted the complainant to provide a digital copy of the sting operation which he had submitted to the ACB.
The SHO of Sonia Vihar Police Station, where the accused head constable was posted when he was arrested by ACB, has also been shunted out in this connection to ensure a fair probe.
"We have registered a case and taken up investigation. Whatever will be needed will be done," Deputy Commissioner of Police (Vigilance) Sindhu Pillai said.
Also Read
A turf war had broken out between the Delhi Police, controlled by the central government, and the Delhi Government after head constable Anil was arrested by ACB on the intervening night of May 1 and 2.
Senior police officials had argued that they were informed about his arrest by the ACB only the next day and the FIR was registered before the official intimation was received by them.
The move triggered off a controversy with Deputy Chief Minister Manish Sisodia alleging that Delhi Police was covering up a corruption case involving its officials by registering an FIR of kidnapping.
"When the head constable was arrested by the ACB, police officials knew about the case. But despite that, an FIR of kidnapping of the arrested official was registered, which is very unfortunate. With this case, we got to see the new face of police," Sisodia had said.
Senior Police officials have cited a notification by the Union Ministry of Home Affairs (MHA), which disallows the ACB from prosecuting Central government employees.