Because law enforcement officers have so much more power than an average citizen, they must be held to much higher standards and have even more accountability. Law enforcement radio should be unencrypted, there should be public databases of officers for facial recognition, and their vehicles and persons should be publicly trackable. The same techniques they use to surveil the citizenry should be applied to them.

https://icespy.org is a site where you can do facial recognition on ICE employees.