put/throw somebody off the scent
put someone off the scent
Fig. to distract someone or a group from following a scent or trail. (From put a dog off the scent; the scent or trail can be purely figurative. (See also put someone off the track.) The clever maneuvers of the bandits put the sheriffs posse off the scent. The mob laundered the drug money to try to put investigators off the trail.
put/throw somebody off the ˈscentgive somebody false information to prevent them from finding out or knowing something: I threw the police off the scent by pretending I was in Mexico City on the day of the crime.
Animals such as dogs follow the scent (= smell) of other animals, especially when hunting.