Police: Suspect No. 1 returns to Channel 5 for its most gripping season yet, throwing viewers directly into the heart of major crime investigations. Season 5 follows elite detectives as they race against the clock to solve their most challenging cases. From the first critical moments at a crime scene to the tense, psychological final interview with a prime suspect, the series provides unparalleled access. Witness the real-life pressure, groundbreaking forensic techniques, and sheer dedication required to bring criminals to justice. This season explores complex murder mysteries and high-stakes manhunts that push investigators to their limits. The compelling season 5 ended on January 19, 2026 sign up for a reminder. Experience the raw, unfiltered journey of how detectives pinpoint their number one suspect.