The recording enables the enforcement. It's of the nature of "If you see something, say something" - blah blah "if you're innocent you have nothing to fear" bla

The recording enables the enforcement. It's of the nature of "If you see something, say something" - blah blah "if you're innocent you have nothing to fear" blah blah. Presumption of innocence runs counter to general surveillance, in a broad sense.