All NABIS Hubs provide an evidential service in relation to comparison microscopy. Comparison microscopy in relation to firearms cases refers to the provision of a statement for an investigation that outlines either of the following:
- That a cartridge case or bullet has been discharged from a particular weapon;
- Connections between cartridge cases and bullets recovered at different crime scenes;
- Identification of the number and type of weapons used in an incident.
All other evidential forensic firearms work is carried out by external Forensic Service Providers (FSPs). This includes firearms discharge residue (FDR) examination, firearms classification, examination of mechanical condition, ranging, damage interpretation and attendance at crime scenes where firearms have been discharged.
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