The light signals (detection of offences) devices approval
By: Home Office.
Contributors: Great Britain. Home Office.
Publisher: HMSO
Published: 1992
Place of publication: London
Language: eng
Notes: Dated 17th December 1992.

Approves as from 01.01.93. for the purpose of light signal offences, 2 types of device known as the Gatsometer BV type 36 & the TRAFFIPHOT IIIG red light meter.