When Odo transports himself from Colyus' office to prove that he and Dax could leave whenever they want, Colyus reacts like he has never seen transporter technology before, but when Odo asks him a minute later if he checked for transporter activity in regards to the missing villagers, Colyus claims that it was the first thing he did like he knew what transporters were.
When Odo demonstrates that he can "disappear" at will by transporting himself to the runabout and back again, Colyus reacts as though it was some form of magical vanishing act. This clearly demonstrates that he has no knowledge of transporter technology, yet moments later when Odo questions him on whether his people had scanned the area for transporter technology, he states that it was the first thing they tried.