Troppo per vivere... poco per morire
FJA 961 or 967 = May 1953, Stockport. From the thumb pic it is a Royal Enfield twin - a Meteor of some sort.
That's a BSA motor, post '54 A7 or A10.
6TP Thunderbird 532PPL still with us currently taxed and tested. Also seen here- /vehicle_427208-Triumph-Tiger-110-1960.html Second thumb is a LE Velocette ? worth an entry. Did the police ever use T110's? Dunno but they did use a lot of Thunderbirds
And Trophies, surprised they ever used anything in sports tune.....