According to District magistrate G S Priyadarshi, the accused identified as Dilshad alias Bhaji Sher was booked yesterday, taking the number of detainees in the case to five.
The police team was attacked on June 27 when they had gone to arrest three men in a cow slaughter case. Four policemen were injured and a police vehicle was damaged in the incident.
Dilshad's son Imran and three others --Saeed, Zulfikar and Imran --have already been booked under the Act, police said.