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Forensic analysis. Handgun surrounded by equipment in a forensics laboratory. The handgun has been analysed for fingerprints using the cyanoacrylate fuming method, producing the white markings seen, which may include fingerprints. After these have been photographed, further analysis of the handgun will be carried out. It will also be test-fired to allow comparisons between the test bullets and shells and those recovered from crime scenes. (KEYSTONE/SCIENCE PHOTO LIBRARY/MAURO FERMARIELLO)