you see, as far as i can remember...the doctors had viewed HELP! with the detectives - and decided that the 'chaotic scene'...involving the british army...needed a bit more definition....'shami' and 'bagley' were also on hand...because they had both been implicated within the HELP! script and needed to be deprogrammed.

and therefore they came up with THE SPIRIT to explain that bit:

The group escapes back to England and they ask for "protection" from Scotland Yard; and get it in the form of a cowardly Inspector (Cargill). After being attacked while recording in the middle of Salisbury Plain surrounded by the British Army, they hide in "A Well Known Palace" (Buckingham Palace) until they are almost captured by Foot.