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NORTHAMPTONSHIRE POLICE AUTHORITY
| NORTHAMPTONSHIRE POLICE AUTHORITY Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20120036946 | FINGERPRINT DETECTION - The invention relates to an apparatus for and a method of detecting latent fingerprints on a previously heated substrate, such as a bullet casing following discharge of a bullet. By applying a potential difference across the substrate, and contacting the substrate with detection means, such as graphite coated beads, arranged to selectively attract to or repel from the area of a latent fingerprint on the surface, a latent fingerprint may be recovered. | 02-16-2012 |