When searching for traces and solving criminal cases, fingerprints on paper are often very important. However, visualizing latent fingerprints on paper requires a special process. The common method to detect latent fingerprints on paper is ninhydrin-treatment.
IFRG is the abbreviation for the International Fingerprint Research Group, which is an association of forensic scientists that was founded in 1974. Its aim is to exchange knowledge, to promote young scientists and to pioneer and discuss research in the fields of biology, chemistry and physics. The IFRG should follow the principles of the Gordon Research Conferences. These principles are the exchange of knowledge between scientists, discussion of peak areas of research to keep and maintain the small network of scientists at a high level.
The International Association for Identification (short: IAI) is a scientific community working in forensics – particularly in the field of identification. The IAI is active worldwide and unites more than 6500 members working all over the world. It is the first as well as the largest organization of its kind.
Gentian Violet is a chemical substance which is utilized in forensics to detect latent fingerprints on non-porous, oily and fatty surfaces. It is the most suitable method to analyze the sticky side of tape. However, the adhesive has to be insoluble in water.
Crime scene technicians worldwide are using “Gel Lifter” to visualize prints in special cases, e.g. strongly bend surfaces (edge of a cup), strongly textured surfaces (nubby bottles) or cut edges (inside of a can), for a few years already. Gel lifters are systems where (usually black) polymer carrier gels with high cohesion impact are placed onto the trace substance.
