Prints know-how aids rust fight

John Bond's method of "fingerprint visualisation" has been used by police across the world to find prints on bullet-casings by using the tiny amounts of corrosion caused by sweat.

And yesterday he said his technique could also be used in industry to measure corrosion on machine parts.

Dr Bond is scientific support manager at Northamptonshire Police and honorary research fellow at the University of Leicester's Forensic Research Centre.

Working with scientists at the university, he has developed a simple, handheld measuring device.