If this was the military, the obvious solution (from their end anyway), would be a five thousand pound pair of braces to keep them up. God knows what the police will use. String, possibly?

Multi-million pound deal?. Assume it's only £5 million, and that's (tapitty tap) £166.67 a pair.

Cheap at half the price. Or possibly not.

What are they doing in trousers anyway? Surely the tourism industry would benefit enormously from issuing them with kilts instead...

One, it might be a half-assed (geddit) attempt to help the police integrate with yoof culture by wearing trousers with the crutch at knee level.

Two, it might be sabotage by a foreign power, as exposed by the Goon Show on the last day of the 1950s.

That particular attack involved shirts; details at http://www.thegoonshow.net/scripts_show.asp?title=s10e02_tales_of_mens_shirts

Inerestingly, the shirts were also made in Leicestershire.