Pressure Sensitive Tape
Many types of tape may be used in the commission of a crime including duct tape, electrical tape, packaging tape, strapping tape, etc. Tape may be used as a gag, ligature, restraint, or blindfold. It may also be found on improvised explosive devices or wrapped around packages of drugs. Tapes vary by construction and composition and can provide good class evidence. Tape found at a crime scene or on a victim can be compared to known rolls of tape in possession of individuals under investigation.
Tape examinations may include using physical measurements, microscopy, Fourier transform infrared spectrometry (FTIR), scanning electron microscopy with energy dispersive spectrometry (SEM/EDS), and gas chromatography/ mass spectrometry (GC/MS).
Variation of adhesive colors of duct tape samples