AntiqueCollector said:
If it's an illegal detention it's illegal period.
The legality of resisting an unlawful arrest (and maybe detention) varies widely from state to state. For a conviction of a crime of "resisting arrest" that really pre-assumes that the arrest was a legal one to begin with. By extension, if it wasn't a 'legal arrest' then to resist such arrest was not illegal.
So - people could resist arrests made without authority to do so, such as arrests made under an invalid statute, or without a warrant or probable cause. However, many states have passed statutes limiting the ability of people to resist even unlawful arrests. While it might be legal to resist an unlawful arrest, it will depend on the rules of the jurisdiction exactly what is allowed.
That brings up the quesiton "What can a person do to resist an unlawful (false) arrest?"
Again, it depends ..... If the state does allow someone to resist an unlawful arrest, there are limits on what can be done:
You could only use the amount of force that would be considered to be 'reasonably necessary'. Some states have limited this even further by refusing to allow any force against police officers who are performing their authorized duties, regardless of whether the arrest is legal.
Some states also have exceptions for good faith arrests, where an arrest by a police officer acting in good faith cannot be resisted.
A person cannot resist arrest because he believes the law under which he is being arrested is unconstitutional.
So - all that brings up the question, "What should I do if I am arrested unlawfully?"
Because of the limits in many states, resisting an unlawful arrest can be a very risky thing. In most states, it will still be a crime to resist a police officer, even if the arrest would be illegal.
It can be very difficult to know under what circumstance, if any, it is permissible to resist arrest and what amount of force can be used.
Because of this, if you are being arrested you should go peacefully.
If you then feel that you have been wrongfully arrested, you can file a complaint for police misconduct and then follow up with a civil suit.
While I agree that sometimes and in some states a person may utilize force to resist an illegal arrest, I am not sure that a detention would rise to the same level. I certainly would offer that a layman would find it very difficult to know what is, and is not, an illegal arrest. Since the police have a far wider latitude to detain people than they do to arrest people - I submit that the average person on the street would have not be able to tell a legal arrest from an illegal one.