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Forensic firearm examination is the forensic process of examining the characteristics of firearms or bullets left behind at a crime scene.Specialists in this field try to link bullets to weapons and weapons to individuals.
Forensic dactyloscopy is the study of fingerprints. Forensic document examination or questioned document examination answers questions about a disputed document using a variety of scientific processes and methods. Many examinations involve a comparison of the questioned document, or components of the document, with a set of known standards.
collect a urine sample Nasogastric tube: for nasogastric aspiration of stomach contents; usually it is not used Water bath: for flotation tests to detect presence of gas, specially for infants (lungs, intestine) as a sign of postpartum life Specimen jars/envelopes/packets: preservation of material evidence Swabs: collecting smears Metacarpal saw
One of those is the Scope of Expertise in Forensic Document Examination document [4] which states an examiner needs "discipline specific knowledge, skills, and abilities" that qualifies them to conduct examinations of documents to answer questions about: the source(s) of writing; the source(s) of machine-produced documents;
A fingerprint classification system groups fingerprints according to their characteristics and therefore helps in the matching of a fingerprint against a large database of fingerprints. A query fingerprint that needs to be matched can therefore be compared with a subset of fingerprints in an existing database . [ 4 ]
The fingerprint powder must be a suitable colour for the surface in question by providing contrast. [3] [6] [8] The details of fingerprints deposited on light surfaces are best visualized by applying dark or black coloured powders. [3] [6] [8] Conversely, white or grey powders are recommended for enhancing fingerprints found on dark surfaces ...
Forensic footwear evidence can be used in legal proceedings to help prove that a shoe was at a crime scene. Footwear evidence is often the most abundant form of evidence at a crime scene and in some cases can prove to be as specific as a fingerprint .
Forensic identification is the application of forensic science, or "forensics", and technology to identify specific objects from the trace evidence they leave, often at a crime scene or the scene of an accident. Forensic means "for the courts".