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Toolmarks

Toolmarks

Toolmarks can be used to link a general type of item such as a crowbar, screwdriver or pair of bolt cutters to an incident.  If a suspect is then found to have such a tool or item in their possession, or at their property or in the boot of their car, or is linked to such an item by DNA evidence, fingerprints or by some other link, the fine detail caused by damage to the "business" end of the item can be linked to the damage left at the scene, if the tool or item was used at the scene.  This will involve either making test damage, usually in soft lead, using the tool and comparing the result to the damage from the scene or taking casts of the damage from the scene for comparison.  If you have a case involving toolmark evidence then contact our forensic scientists for an impartial review of the evidence.

Striations from a cutting tool on a security bolt in a forensic toolmark case
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