in certain cases yes (eg: Murder Cases) but in certain cases no (eg: Finding Speeders)
Report it to the police and get an attorney (lawyer).
Without a doubt, yes it should be allowed. OF COURSE IT SHOULD!
You can be arrested and detained without a warrant. A criminal attorney can give you some help, and if you have been arrested, you should consult one immediately.
In Arkansas, a county can hold an individual without a warrant for a maximum of 48 hours. This timeframe is in accordance with the state's laws, which require that individuals arrested without a warrant must be brought before a judge promptly to ensure their rights are protected. After 48 hours, if no formal charges are filed or warrant issued, the individual should be released.
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 only in an emergency
a person can, whether they should or if its legal is another matter.
Is there any risk of abuse with eavesdropping
A warrant is a court order that allows police to perform an action, like search a home or obtain a person's phone records. The government should not be able to wiretap phones with a warrant to do so. Otherwise, the government is violating the privacy of innocent citizens.
If an active bench warrant is preventing you from renewing your driver's license in Virginia, you will not be able to get a license in any other US state without resolving the warrant. You should contact the authority that issued the warrant to get it resolved as soon as possible.
Of course
Your plea should be based on whether or not you are guilty, and not on the age of the warrant.