Item title reads - Burglars beware. Sir John Gilmour opens new laboratory at Police College, Hendon.

Greater London.

M/S of London's Police Chief, Lord Trenchard, stood with Home Secretary Sir John Gilmour. M/S of Gilmour on a platform with other officials who applaud. M/S as he makes a speech about the new laboratory he is opening to help in the fight against crime. C/U of Trenchard listening. Various shots of the laboratory and instruments with microscopes etc. C/U of Gilmour declaring the laboratory open. M/S of a scientist doing tests. M/S of a finger pointing to two microscopes, a voice says they are ready to compare the grooves in different bullets.