When entering a crime scene, forensic scientists wear protective clothing over their regular clothes to prevent contamination. This may include a full-body suit with a hood, a mask, booties and gloves.
The papery, disposable body suits worn by forensic scientists are called Tyvek suits, made from highly dense polyethylene. They are lightweight but provide effective protection, have high standard abrasion resistance and increase overall comfort and mobility.
Other protective clothing are frequently changed. This is because gloves, masks and booties have a higher probability of becoming contaminated. Gloves and masks are disposed of, but booties are collected in a paper sack, because they often pick up evidence from the floor of a crime scene.