[longtermmemmory]

the same argument is made concerning illegal aliens.

The illegal alien is still committing a criminal act by being in the country.

The person with the warrant still has a warrant that MUST be acted upon.

[Edward.Fish]

the same argument is made concerning illegal aliens.
The illegal alien is still committing a criminal act by being in the country.

And there's often a lot of probable cause for stopping such people.
Of course that requires both the use of politically-incorrect "profiling", and the admission that the current system is designed to ignore them.

The person with the warrant still has a warrant that MUST be acted upon.

Ah, so ignorance of the warrant is no excuse, just like ignorance of the law is no excuse?
Sounds like you want everyone, police and population, to be omniscient.