Final answer:
Section 30 PACE 1984 deals with the arrest and detention procedures by the police in the UK. It requires the police to inform the individual of the arrest reasons and allows for detention under specific conditions, with proper authorization and documentation.
Step-by-step explanation:
Section 30 of the Police and Criminal Evidence Act 1984 (PACE 1984) is a provision in UK law that deals with the powers of the police to arrest individuals and take them to a police station. Once a person has been arrested, the police must inform them of the grounds for their arrest, and they are typically required to be brought before a magistrate within 24 hours. Under Section 30, if the police need to detain the arrested person beyond the time necessary for a prompt investigation, they must follow strict procedures. These may include gaining authorization from a senior officer for detention beyond the initial period and ensuring that the reasons for such extended detention are clearly recorded and justified.