#Impression evidence examples trial#
Despite the importance of fingerprinting and its useful practice, some actually argue against its supposed infallibility: Some courts have even overturned cases because of bad fingerprint matches, including a 1998 murder trial in which a Delaware man was wrongfully convicted and spent two years in prison. With more sophisticated technology such as DNA profiling, experts are finding that fingerprints aren't as perfect a system as we'd like to think. If a suspect is caught, the pattern on the bottom of his shoes can be compared to any footprints.
This form of evidence has become a metaphor for uniqueness, an important concept in forensic science. For example, a shoe print may be characteristic of only a specific brand of shoe, such as Nike. Clearly defined are the individual phalange impressions, and there is no evidence of distortion or disruption with separated lumps and fragments. The old logo for the crime network TruTV, formerly known as Court TV, featured a prominent image of a fingerprint. Goals of Biological Evidence Collection Collect as much sample as possible from a single source.
The opening credit montages for many television crime dramas often superimpose large, ominous details of fingerprints over shots of the main characters. The evidence most often encountered in sexual assault cases includes not only biological evidence (e.g., semen) but also fingerprints, impression evidence (e.g., shoeprints), and trace evidence (e.g., hairs/fibers). Fingerprints, along with the magnifying glass and the microscope are one of the most iconic and recognizable images connected to crime scene investigations and forensic science.
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