PC George Garfield gets a collar, and spends hours interogatting him - without the use of a tape machine! - only to discover he is a juvenile and should not have been interviewed without an appropriate adult.
DC's Dashwood and Carver accompany DS Ted Roach to a factory where things have been going missing. They search for the thief in the warehouse, believing him to be from an air conditioning company. In the course of the search, Jim is attacked and left semi-concious beneath a pile of crates.
It takes Dashwood a while to find him - Jim insists he is ""alright"", but later collapses in the factory foyer. He's taken - unconcious - to hospital where he's diagnosed with mild concussion and has to stay in over night - which is fine with him as his nurse is very pretty and friendly!!
The case turns out to be one of industrial espionage, and Ted turns it over to the appropriate authorities. [Source: jimsgirl]