Custodial interrogation refers to the questioning of a person by law enforcement officers after that person has been taken into custody or otherwise deprived of freedom in a significant way. This type of interrogation is crucial because it raises important legal implications related to an individual's rights, particularly concerning self-incrimination and the right to counsel. Understanding custodial interrogation is essential to grasp how protections against coercive tactics in police questioning are enforced under constitutional law.