Determining Tampers / Adulterations

Training Modules
If the donor attempts to tamper with the patch by applying a substance to its exterior, the film will lose its shiny, smooth, and transparent qualities. Should the donor try to manipulate the patch by injecting a caustic substance beneath the patch’s outer film, several indicators may be evident. The absorbent pad might show discoloration and emit an odor, the skin under the pad could become irritated and red, and puncture marks from a hypodermic needle may be visible on the film.
In cases where you suspect that a patch has been tampered with or is compromised, record your observations in box #17 on the chain of custody form. This acts as a record in the event the patch is unsuitable for analysis or yields unexpected results.





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