The Kelvin probe can easily cope with the 3D curvature of the bullet casing increasing the versatility of the technique .
A Scanning Kelvin Probe scan of the the same casing with the fingerprint clearly detected .
The Kelvin Probe probe can easily cope with the 3D curvature of the bullet casing increasing the versatility of the technique .
A Scanning Kelvin Probe scan of the the same casing with the fingerprint clearly detected .