Fingerprint analysis
Fingerprint analysis is often conducted during scene investigations, usually in insurance investigations into burglary, arson and sabotage.
Fingerprint analysis is the technique of detecting fingerprints and comparing and identifying them and is part of the forensic investigation of clues, such as traces of DNA, tyres, burglary, blood and sperm. Fingerprints are used not just as a means of investigation but also as proof of identity.
Fingerprints are made up of papillary lines, which are raised lines present on the skin in various shapes. Fingerprints have 100 percent evidential value. No two people have the same fingerprints, not even twins. Fingerprints are therefore unique and unchanging. For purposes of identification, the accepted practice is that there must be several points of similarity and no differences.
When investigating internal thefts, we are often asked to take fingerprints or find out whether there are usable fingerprints. The trouble with internal thefts is that the fingerprints we find are job-related ─ for example, the bookkeeper who manages the cashbox, or the personnel worker with access to a safe from which personnel dossiers were stolen. That makes it difficult to conduct a technical analysis of the clues, but it does not rule it out.
The detected fingerprints are preserved at the scene and are interpreted later. In addition, the fingerprints of the suspects should also be taken in a forensically accountable way. Any clues detected can then be used to reconstruct the offence. We also focus on the total picture or the clues left by the suspected perpetrators. For example: how did the perpetrators get in? Were they helped from inside, did they use a key or are there signs of a break-in, did they have the alarm code, and so on?
In most cases, the combination of technical and tactical searches and a face-to-face interview with the suspected perpetrator will always uncover the truth.
Fingerprint analysis is the technique of detecting fingerprints and comparing and identifying them and is part of the forensic investigation of clues, such as traces of DNA, tyres, burglary, blood and sperm. Fingerprints are used not just as a means of investigation but also as proof of identity.
Fingerprints are made up of papillary lines, which are raised lines present on the skin in various shapes. Fingerprints have 100 percent evidential value. No two people have the same fingerprints, not even twins. Fingerprints are therefore unique and unchanging. For purposes of identification, the accepted practice is that there must be several points of similarity and no differences.
When investigating internal thefts, we are often asked to take fingerprints or find out whether there are usable fingerprints. The trouble with internal thefts is that the fingerprints we find are job-related ─ for example, the bookkeeper who manages the cashbox, or the personnel worker with access to a safe from which personnel dossiers were stolen. That makes it difficult to conduct a technical analysis of the clues, but it does not rule it out.
The detected fingerprints are preserved at the scene and are interpreted later. In addition, the fingerprints of the suspects should also be taken in a forensically accountable way. Any clues detected can then be used to reconstruct the offence. We also focus on the total picture or the clues left by the suspected perpetrators. For example: how did the perpetrators get in? Were they helped from inside, did they use a key or are there signs of a break-in, did they have the alarm code, and so on?
In most cases, the combination of technical and tactical searches and a face-to-face interview with the suspected perpetrator will always uncover the truth.
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