Detectives arrested an on-duty Ansar member along with some Yaba tablets from Dhaka Medical College Hospital in the early hours of Monday.
The Ansar member was Asad Miah, 35.
Bacchu Miah, sub-inspector of DMCH police outpost, said a team of Detective Branch of Police arrested Asad from the Ansar camp of DMCH in possession of the Yaba tablets at around 1:00 am.