How to Compare Fingerprints at Home? A Simple Guide by Forensic Expert
Forensic fingerprint experts have a set of guidelines that are needed to follow to compare fingerprints. But in this simple guide, I will tell you how you can compare fingerprints at home. You only need a questioned (unknown fingerprint sample) and a reference (known fingerprint from the individual). If you’re doing only one set of …
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Comparing Fingerprints At School: A Fun Activity for Students and Teachers
Forensic fingerprint experts follow a set of rules for comparing fingerprints. But in this simple guide, I will show you how you as a teacher can create a fun activity for their students who have no prior knowledge of comparing fingerprints. For this forensic fingerprint comparison school activity, you don’t need any sophisticated tools. The …
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Amido Black in Fingerprint Development: Principle, Procedure, Advantages, and Disadvantages
Amido Black, also known as Acid Black 1, is an acid diazo dye used by forensic fingerprint experts to detect and enhance latent blood marks. Amido Black stains proteins forming a dark blue-black colored product. It is the most widely used protein stain dye for the development of bloody fingerprints on both nonporous and porous …
6 Tests to Solve Disputed Paternity and Maternity in Forensic Science Cases
There are three main reasons why disputed paternity and maternity cases are used in forensic sciences. Following are the tests and techniques used in solving disputed paternity and maternity cases involving legal systems and forensic evidence. 1. ABO Blood Group System Human blood type is predetermined by particular GENES that we inherit from our parents. …
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Ridge Counting in Fingerprints: Rules, Need, Calculation With Images
Ridge counting is a technique that involves counting the intervening ridges present between the core and delta of a fingerprint. In essence, this method quantifies the ridges between these two reference points, helping to categorize fingerprints based on their ridge counts. Ridge counting is mostly used for loop patterns. For arches, ridge counting is generally …
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Crime Scene Search Methods and Patterns: Types and When to Use With Examples
What is Crime Scene Search? A Crime Scene Search is a systematic method designed to locate evidence within a crime scene or other areas where evidence might be present. This process typically involves: In other words, it is a technique used to comprehensively search the area to uncover potential evidence that helps in solving cases. …
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Strip (Lane) Search Method: Procedure, When to Use? With Examples
The Strip Search Method is a widely-used and effective approach to finding evidence at large crime scenes. They are characterized by their unique method of search that somewhat resembles the line method. Other Names: Lane search or parallel search In the strip or lane search method, searchers systematically walk in straight lines of constant width …
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Spiral (Circle) Search Method: Procedure, When to Use With Examples
The spiral (also called circle) search method is a unique and specialized crime scene search pattern that involves circular movements (inward or outward) across the area involved. It is often employed in confined interior or exterior crime scenes, such as small fenced yards or cramped spaces. This technique requires searchers to be highly attentive to …
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