Forest Department officials detained three poachers with venison on Monday afternoon in Tiarchar area in Sharankhola upazila.   The arrested are—Abul Kha, 42, and Sanjoy Mistri, 32, of Patharghata upazila in Bagruna, and Asadul Sheikh, 25, of Dacope upazila.   Mohammad Belayet Hossain, divisional forest officer, Sundarban East Zone, said they detained the three poachers in a drive when a group of seven poachers put deer hunting trap in the forest and slaughtered two dears.   The poachers managed to escape while 30kg venison, 700 feet net trap, three trawlers and a boat were seized, he added.   Meanwhile, 22 deer were rescued  and released later.