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Evidence Photography — At the Crime Scene
- https://www.crime-scene-investigator.net/csp-evidence-photography-at-the-crime-scene.html#:~:text=Photograph%20the%20latent%20with%20the%20camera%E2%80%99s%20film%20plane,viewfinder%20is%20filled%20with%20the%20fingerprint%20and%20scale.
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How To Photograph Fingerprints – Camera Harmony
- https://cameraharmony.com/how-to-photograph-fingerprints/
- Step By Step on Photographing Fingerprints Step 1: Find a Surface with Fingerprints. First thing is first, find the fingerprints! Most prints you can see, such as... Step 2: Test the Lighting. Next is illuminating prints well. The most …
Photographing Latent Prints
- https://www.dfs.virginia.gov/wp-content/uploads/2014/08/Photography.pdf
- The camera should be mounted on a tripod, perpendicular (at a right angle) to the latent print so that the film plane and the print are parallel. The latent print should fill the frame to ensure it is captured at a minimum of 1000 ppi. The latent print should be first photographed without a scale, then with a scale.
Crime Scene Investigation Latent Print Photography
- http://www.actforlibraries.org/crime-scene-investigation-latent-print-photography/
- There are many different types of processes used to collect latent fingerprints from evidence. The most common method is fingerprint powder which has the ability to be lifted with tape and placed on a card. Other methods make prints visible on the surface of the evidence, but need to be photographed since they cannot be lifted.
Identifying Fingerprints through Photograph: Reliable or Unreliable?
- https://legaldesire.com/identifying-fingerprints-through-photograph-reliable-or-unreliable/
- The photographing object is placed directly in front of the camera lens. To direct the light onto an object, a piece of glass is placed at a 45-degree angle in the axis of the camera lens. This technique is employed for photographing the latent prints on mirrors or prints within falciform objects. (Hutchins, 2014)
Standard Guide for Latent Print Evidence Imaging …
- https://www.nist.gov/document/standard-guide-latent-print-evidence-imaging-resolutionmarch-2018
- Determine the maximum field of view in which a minimum nominal. 213 resolution of 1000 ppi should be achieved for each camera and lens. 214 combination to be used to photograph latent print evidence. 215 7.3.2.1. Determine the effective pixel dimensions of the camera’s sensor as. 216 stated by the manufacturer.
FBI — General Guidelines for Capturing Latent …
- https://www.fbi.gov/about-us/lab/forensic-science-communications/fsc/april2002/swgitlatent.htm/
- Procedure 2: Camera setup for latent impression photography A typical standard operating procedure includes the following techniques used for …
General Guidelines for Capturing Latent Impressions …
- https://www.ojp.gov/ncjrs/virtual-library/abstracts/general-guidelines-capturing-latent-impressions-using-digital
- This paper describes the proper documentation of latent print evidence in the field using a digital camera. Abstract Three procedures are enumerated: (1) lens calibration to achieve a minimum of 1,000 pixels per inch (ppi); (2) camera set-up for latent impression photography; and (3) use of a portable computer in field operations to acquire file/images.
Evidence Photography — At the Crime Scene
- https://www.crime-scene-investigator.net/csp-evidence-photography-at-the-crime-scene.html
- Photograph the latent with the camera’s film plane parallel to the fingerprint surface. In order to get as much detail recorded on the film as possible, position the camera so the frame of your viewfinder is filled with the fingerprint and scale.
Fingerprint Analysis: How It’s Done - Forensic Science Simplified
- https://www.forensicsciencesimplified.org/prints/how.html
- These chemicals react with specific components of latent print residue, such as amino acids and inorganic salts. Ninhydrin causes prints to turn a purple color, which makes them easily photographed. DFO (1,2-diazafluoren-9-one) is another chemical used to locate latent fingerprints on porous surfaces; it causes fingerprints to fluoresce, or glow, when they are illuminated by …
Latent Fingerprint Chemical Reagent Techniques Guide
- https://www.cbdiai.org/uploads/1/2/4/0/124025868/latent_fingerprint_chemical_reagent_techniques_guide.pdf
- Latent Fingerprint Processing Techniques - Selection & Sequencing Guide. The focus of this program is to provide background and guidance regarding a latent fingerprint processing technique's capabilities, applicability, incompatibilities and sequencing in order to guide an examiner in his/her selection of an appropriate technique.
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