A look behind the scenes of one of the world's top dog training academies. Crufts this is not - there are no prizes for good looks or pure breeds. This is where the dogs that protect society from drugs and explosives are trained and prepared for a life on the front line. No snarling German Shepherds, this is more a world of playful Spaniels and bouncy Labradors but be prepared for heartaches, as not everyone makes the grade.
