The sun is out and footballs are flying around the artificial pitches of Eastney Community Centre in Portsmouth. It's a busy scene. Girls play a football match on one pitch; lads kick about on another. On a basketball court, a big group of teenagers have discarded their bikes and have settled down for a chat and a smoke. On the other side of the court, three young men play with a remote-controlled car. Some known drug dealers try to enter the...