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Photographic Comparisons
Examinations of film, negatives, digital images, photographic prints, and video recordings including surveillance images involve comparisons of subject(s) depicted in the questioned images with known images (e.g., photographs, videos) of suspect(s). Similar comparisons can be made between the subject(s)' clothing and clothing seized from the suspect(s). Comparisons can also be made with firearms, vehicles, and other objects depicted in surveillance images.
Photogrammetry
Dimensions can be derived from photographic images through the use of geometric formulae or on-site comparison. Examples of photogrammetry include determining the height of bank robbery subject(s) and the length of the weapon(s) used by the subject(s) depicted in the surveillance films.
Location, Time, and Date
Examinations of photographic evidence can determine the location, time, and date that an image was taken.
Authenticity and Image Manipulation Detection