What does the questioner mean by having the "physical" arrest warrant?
If it means that, even though there is an existing warrant, but they just don't happen to have it in their possession - for them to act on the knowledge that the warrant exists is still lawful. They do not need to have the actual warrant in their possession in order to act on it.
As in most cases involving the law, the CIRCUMSTANCES of the situation dictate what law enforcement can, and should not do. For example;
If the police are in 'fresh pursuit' of someone and they run into the house they CAN pursue and arrest the individual inside.
If they knock on your door - you open it - and behind you, they see the wanted individual sitting in your living room, they can enter and effect the arrest.
Without a warrant you must find reasonable grounds to arrest someone, whereas with a warrant your reason to arrest the suspect already exists. Without a warrant a Police Officer can arrest anyone without permission of a Magistrate as long as they follow the correct procedures so their arrest is lawful, which is unlike an arrest with a warrant where you must be granted the warrant to be able to arrest that person. Without a warrant, a Police Officer can mess the arrest up and make it an unlawful arrest but with a warrant it is very unlikely that they make it an unlawful arrest.
A warrant is a demand issued by a court. An example is; an arrest warrant is a demand for someone's arrest. A foreign warrant is issued for someone in another country.
Police do not necessarily need a warrant to arrest someone. Basically an arrest means that they have strong reason to believe that someone has broken the law. A warrant allows them to arrest the person on sight even if they are doing nothing wrong at the time. If you feel like the arrest is unjust your best option is to get an attorney.
call the state police and ask
The two types of arrest are with or without a warrant.
A warrant is an order for an arrest issued by the court. But many arrests do not need a warrant. If you punch someone in the face, and police are called, you will be arrested without a warrant, and one will not be needed. If say, you failed to show up in court, then a warrant for your arrest will be issued, to alert all officers that you should be arrested on sight. So the warrant itself is not the thing 'allowing' you to be arrested.
Yes
Yes, of course. An arrest warrant is a command from a judge to arrest a person. Usually a police officer has no choice and must arrest.
No. A warrant is issued by a magistrate or judge.
It does not seem reasonable or possible.
no
Most juridictions allow arrest for a felony without a warrant as long as probable cause for the arrest can be articulated.