On 13th August 1978, Peter William Sutcliffe was interviewed as a result of his red Ford Corsair car having been seen in the Chapeltown area of Leeds and the Manningham area of Bradford. Detective Constable Peter Smith of the West Yorkshire Police, who knew that Sutcliffe had been seen during the £5 note inquiry, visited him at his home in Garden Lane, Heaton, Bradford. Detective Constable Smith knew that Sutcliffe worked as a lorry driver from a Bradford base and assumed that the sightings of his car in Bradford could be explained by journeys to and from work. Sutcliffe denied having visited Leeds or other West Yorkshire towns during evenings in the relevant period. He also emphatically denied using the services of prostitutes.
On the 23rd November 1978 Peter Sutcliffe was seen again by Detective Constable Smith who obtained details of his Building Society account in connection with the £5 inquiry. Smith also visited the new owners of the red Corsair and obtained a description of the tyres, which were new, having apparently been fitted after the vehicle had changed hands.