Materials on identifying a person from photographs and video images, image suitability, questions for an expert and report reviews.
A mask, hood, glasses, head rotation or an object in front of the face may limit the available appearance features. Image suitability must be assessed before comparison. A general impression of similarity does not replace checks of the material's quality and comparability.
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Dozens of similar photographs do not always provide more information than a few suitable images. Facial comparison depends on feature visibility, viewing angle, lighting,…
Read article →The tasks addressed by facial comparison examination, the images examined and how it differs from forensic photographic examination.
Examples of properly formulated questions for a court, investigating authority, advocate and extrajudicial examination.
Which files, frames, originals, comparison images and explanations are needed for examination.
Why quality, viewing angle, lighting, resolution and facial obstruction affect the expert's conclusions.
The difference between identifying a person from appearance and examining a photograph's technical features.
Errors that occur in reports identifying people from photographic and video images.
Typical scenario
If a face appears through a reflective surface, ordinary labels for its right and left sides may mislead. Suppose that frame and a direct photograph are submitted, but the frame's provenance is incompletely described.
You may send photographs, video frames, a video link, an appointment order, court ruling, draft questions or an existing report for review.
