You can get in trouble by turning BWV off too early or failing to turn it off in time.
Special Order 12, section V, tells you when you can turn it off. Emphasis is mine.
“RECORDING OF THE ENTIRE CONTACT. The BWV shall continue recording until the investigative or enforcement activity involving a member of the public has ended. If enforcement or investigative activity with a member of the public resumes. the officer shall activate the BWV device and continue recording.”
