If it’s an arrestable offence the officer is bound by law to affect the arrest, period. The courts decide from that point.
The time to contest bad law is NOT during an arrest.
Tell me, when was the last time tens of thousands of cops and their powerful government unions publicly came out against all these bad endless controlling laws which they're rewarded and paid to enforce?
No mass protests? No work stoppages, no mass blue flu?
No public news conferences attempting to educated get the voters to support the fight against dominant oppressive laws?
Effect. Effect means to cause to occur. Affect means to have an influence on.