Question to the Department for Transport:

To ask the Secretary of State for Transport, what steps is the Minister taking to reduce the impact from cyclists using (a) strobe and (b) flashing lights on (i) motorists and (ii) other road users.

Standards for the fitment and use of bicycle lights are set out in the Road Vehicles Lighting Regulations 1989 as amended.

Front and rear flashing lights are only permitted on bicycles provided they do not cause undue dazzle or discomfort to other road users, have a constant flashing frequency of 1 to 4 hertz and, if they are the only lights fitted, an intensity of not less than four candelas.

Enforcement of road traffic law is generally an operational matter for individual police forces and their officers can issue verbal warnings or fixed penalty notices, or report riders for formal prosecution.