Because most offenses occur within their presence or under conditions under which there is 'fresh pursuit. Also, due to the fact that the identify of the actual offender and their physical appearance, and addresses of the wanted offenders is known. Warrants are necessary for offenses in which the identity of the offender is not immediately known or clear, and require investigation and the development of probable cause to make an arrest, or for misdemeanors which do not occur in the officers presence. Traffic offenses are, of course, self-explanatory.
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.
No.
If the Police or other authorities see you commiting the crime.
Depends on what the warrant is for. what if its for child support
No it is not
Yes they can search it
Yes, there is no need for a warrant. The person can refuse to cooperate with the police if they so choose, in which case they might be taken into custody for interrogation at the police department.
Absolutely not! A "blue warrant" is issued when the individual has violated parole or probation, and the named person is not subject to being released on bail or under any other terms.
call a bail bondsman
Report it to the police and get an attorney (lawyer).
Arrests don't normally have to occur from an indictment. They can occur on the basis of an arrest warrant or on the basis of information charging the person with a crime. A person can be arrested anywhere: work, church, court, home, and anywhere else the police can find you.
Yes, they may accompany officers of the jurisdiction in which the warrant is being served and who will actually effect the arrest.