Police Scientific Development Branch - Yorkshire Ripper Inquiry
On the 26th April 1978 Detective Chief Superintendent Domaille contacted the Police Scientific Development Branch and asked for assistance.
Members of the Branch and the Police Research Services Unit visited the force on the 4th, 22nd and 25th May and as a result agreed to arrange for the results of the vehicle observations in "red light" areas to be processed on the Police National Computer. Observations on vehicles in notable "red light" areas had by this time been commenced in other Northern cities within and outside West Yorkshire so that possible leads might be available to investigating officers in the event of a further Ripper crime.