Acting on a tip off, the STF team in a joint operation with local police arrested Ram Tirath at Ataina ghat when he was going on a motorcycle yesterday, he said.
A pistol along with a magazine and cartridges looted from the slain officer, a country made weapon of .315 bore and Rs 42,000 in cash were seized from his possession, the spokesman added.
Sub-inspector Sarvesh Kumar and constable Pramod Kumar were shot at in Binawar area in Ghatbeti village in Badaun district on June 22 while they were on patrol duty.