How often must a station clerk physically observe a prisoner?

The correct answer is that a station clerk must physically observe a prisoner every 30 minutes. This protocol is in place to ensure the safety and wellbeing of individuals in custody. Regular observation allows for monitoring the prisoner's condition, identifying any potential medical emergencies, and preventing self-harm or escape attempts. By adhering to a 30-minute interval for observations, the system strikes a balance between sufficient monitoring and the practical demands of the clerk's duties. This timeframe is designed to maintain the necessary level of vigilance while allowing for other responsibilities that the station clerk manages. Regular checks at this interval help maintain a secure environment in the station.