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Processing the Crime Scene and Establishing Identity - Essay Example

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Ardrox is used a cyanoacrylate dye. With the use of the ultraviolet light, this fluorescent liquid can definitely help speed up the raising of the latent print. This chemical is added to…
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Extract of sample "Processing the Crime Scene and Establishing Identity"

1. Two of the popular chemical methods used in Latent prints are Ardrox and Silver Nitrate. Ardrox is used a cyanoacrylate dye. With the use of the ultraviolet light, this fluorescent liquid can definitely help speed up the raising of the latent print. This chemical is added to solvent which means adding a pre-measure amount to a liter of solvent. Silver nitrate is also one of the most commonly used chemical to raise the prints during crime investigation. The diluted solution of silver nitrate can be used through spraying or immersion in which the chemical reacts with salt present in sweat and is exposed to sunlight or ultraviolet light source.

However, when using this method the investigator must be careful not to overdevelop the finger prints.2. There are many types of evidence in crime investigation that should be documented, collected and preserve. The impressions such as finger prints and forensic biology such blood, and body fluid must also be collected. The trace evidences and firearms evidences which include gun powder patterns are needed. Lastly, the question documents must be kept safe. When documenting, collecting and preserving evidence of the crime scene we must make sure that we follow local, state and federal laws for collection and admissibility.

The evidences such as drugs, paraphernalia or personal property shall be recorded, collected, and safeguarded in presence of a witness. The investigator shall also participate in the scene debriefing to make sure that responsibilities are well communicated especially those that are post-scene. There should also be markings of the detectives because this will be used in trial and this is the way to prevent any contamination of the evidences and assure that the evidences presented are genuine.    Sources:http://www.

drtomoconnor.com/3220/3220lect01a.htmhttp://blog.makezine.com/laboratory-80-revealing-latent-finghttp://www.crime-scene.com/store/A-2612.shtml

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