One of the officers was found guilty of the lesser charge of careless driving.

The case followed an Independent Police Complaints Commission investigation (IPCC) into a road traffic incident that resulted in the death of 67-year-old Peter Williams in November 2006.

The jury returned the verdicts on PC Sean Schofield and Pc Andrew Massingham at the end of a three-week trial at Liverpool Crown Court.

PC Schofield was found guilty of the offence of careless driving and given a £500 fine and two-year driving disqualification.

PC Massingham was acquitted of causing death by dangerous driving and did not face the alternative charge of careless driving.

The charges related to death of Peter Williams from Bolton-le-Sands, who died after a Lancashire Constabulary Volvo V70 driven by Pc Schofield collided with his car on the B6254 near Carnforth on 2 November 2006.

PC Schofield was taking part in training exercise to test a speed measuring system called VASCAR.

He was following another Lancashire Constabulary Volvo V70 being driven by PC Massingham when he lost control of his car on a left-hand bend.

Both vehicles had been travelling along the country road at speeds in excess of 90mph.

Mr Williams died in Lancaster Royal Infirmary the day after the incident. His wife, Jean, who was a passenger in the car broke both wrists.

IPCC Commissioner Mike Franklin said: "The IPCC presented a comprehensive file of evidence to the Crown Prosecution Service who decided it was appropriate for PCs Massingham and Schofield to face criminal charges. I have noted today's verdicts and I will be seeking urgent discussions with Lancashire Constabulary about the findings of our investigation and whether there will be any disciplinary matters relating to the two officers. The key step also is for discussions to take place nationally to determine the appropriateness of this kind of police training.

"This investigation was conducted thoroughly, rigorously and with great sensitivity. I am proud of the work our investigators did in this case. This was a tragic incident and my deepest sympathies go out to the Williams' family."

Lancashire Constabulary's Assistant Chief Constable Chris Weigh said: "This has been an incredibly long and difficult investigation for everyone involved and my thoughts are with Mr Williams' family and friends at this incredibly difficult time.
"On behalf of Lancashire Constabulary, I would like to offer them my deepest sympathies."

He went on to say PCs Massingham and Schofield would remain on "alternative duties" while the force "digested" what the court and the Independent Police Complaints Commission (IPCC) had said.