At each match, there should be on the perimeter track, for each self-contained pen or other terraced area, a steward (if the club is monitoring that area) or a police officer (if the police are monitoring it) whose sole duty is to check crowd conditions in that area for possible overcrowding or distress throughout the period the area is occupied by spectators. Whoever is so appointed should be in addition to any other steward or police presence. He should have ready access to the police officer authorised under Recommendation 9 below, and by radio to the control room.