Ever since the landmark Supreme Court ruling in MIranda v. Arizona in 1966, it has become the practice of police investigators to read suspects their rights -- of give them the Miranda warning -- before questioning them while in custody.
Many times, police give the Miranda warning -- warning suspects they have the right to remain silent -- as soon as they are placed under arrest, to make sure the warning is not overlooked later by detectives or investigators.
The following is the standard Miranda warning:
"You have the right to remain silent. Anything you say can and will be used against you in a court of law. You have the right to be speak to an attorney, and to have an attorney present during any questioning. If you cannot afford a lawyer, one will be provided for you at government expense."
Sometimes suspects are given a more detailed Miranda warning, designed to cover all contingencies that a suspect might encounter while in police custody.