The Chief stops Bashir in his tracks from opening the abandoned crate of rations without first checking it for booby traps but, when he sees the transmitter near by, he opens it and starts examining it without doing any sort of similar check beforehand at all-you'd think that, if anything was going to be booby trapped, it would be a transmitter.
Interesting that Dr. Bashir declared the T'Lani team all dead but didn't bother to examine one of them.
Commander Sisko refers to O'Brien as "a fine officer". Miles O'Brien held the rank of Chief Petty Officer, and enlisted rank not a commissioned officer rank. The Commander of a space station would know the difference.