Dom Littlewood goes behind the scenes at some of some of Britain's most secure institutions to see how they keep us and the country safe. On today's show, he fulfills a childhood dream, riding up front with a train driver as he checks out all the tech keeping the UK's railways safe.
He sees how bouncers are trained to keep the peace on a night out. And home security expert Jenny Donaldson has advice on how to deal with distraction burglary when she meets a guy who unwittingly let a thief into his home.