asked the Home Secretary whether he will consider taking steps to make it compulsory for all hackney carriages and other vehicles plying for hire to be fitted with unsplinterable glass?

The jurisdiction of my right hon. Friend in this matter is limited to London. He has considered it in consultation with the Commissioner of Police: he is afraid that it is not practicable at present to enforce the use of unsplinterable glass in public service vehicles generally on account of the cost, but the matter will not be lost sight of.