14/15. Enforcement officers crack down on shops selling knives to under-18s, and former EastEnders actress Brooke Kinsella talks about her brother Ben, who was stabbed to death. [S,SL]
12/15. Enforcement officers battle to keep the roads safe as four people lose their lives when a lorry driver using his mobile phone ploughs into them. [S,SL]
11/15. Enforcement officers crack down on the travel agents conning families out of thousands of pounds, and they investigate online traders dealing in dangerous body-building drugs. [S,SL]
9/15. Enforcement officers investigate the death of a seven-year-old girl when the bouncy castle she was playing on was swept away by a gust of wind. [S,SL]
5/15. Enforcement officers investigate a factory fire that forced residents to flee their homes, and they catch a tipper truck on camera as it illegally dumps 20 tonnes of waste. [S,SL]
4/15. Enforcement officers crack down on restaurants putting customers' lives at risk, and they put the brakes on a fake website fleecing motorists out of millions of pounds. [S,SL]
2/15. Enforcement officers pursue those responsible for an horrific crash that scarred an entire community, and they raid the home of an illegal money lender who preys on the vulnerable. [S,SL]
1/15. Enforcement officers crack down on a company that designed a cot that almost cost a baby its life, and a water company is caught polluting a river with raw sewage. [S,SL]