For the collection and securing of hairs and fibers from textile surfaces (clothing, car seats and the like) several products can be used:
The vacuum cleaner top is a disposable nozzle for the collection and securing of microtraces, even when they are so small that they cannot be spotted with the naked eye. If the vacuum cleaner top is used as a disposable, each collection of material (hair, fibers, pollen, etc.) can be said with 100% certainty to come from the crime scene just processed.
The vacuum cleaner top is fitted with a tapered adapter and a stabilizing rubber O-ring for mounting on all common vacuum cleaner models.
The collected evidence is retained on the filter paper (cross-section 72 mm) in the microfilter unit. After vacuuming is completed, the microfilter is removed and covered with an optically correct plastic lid, so that it can be viewed directly under an optical microscope.
Vacuum cleaner top with microfilter and rubber O-ring
Microfilter assembly for VacuuMark, 10 pcs
For the collection and securing of hairs and fibers from textile surfaces (clothing, car seats and the like) often an adhesive film that has a release liner is used. This type of film has a low tack, so that secured fibers can be removed later if necessary. For taping off an area, a piece of about 5x10 cm is used. The area is systematically processed (the film is applied, rubbed, and removed) till the complete area has been sampled or until the adhesive film has lost its tack.
In the latter case, the processing is continued with a fresh piece of film. On completion, the adhesive film is re-covered with the release liner or is applied to a sheet of transparent plastic (never use ordinary paper, as removing secured fibres from the adhesive film would become very difficult).
The BVDA Instant Lifter consists of a transparent adhesive film (with a protective cover) adhered to a black, white, or transparent backing.
The adhesive film has a special low tack adhesive. The protective cover is die-cut, for easy removal. To the adhesive film, a backing sheet is attached. This black, white, or transparent backing can be easily be applied to the adhesive film, after lifting of the powdered fingerprint(s). To avoid the inclusion of air bubbles, a roller can be used.
On the front of the Instant Lifter, a metric scale is visible. Therefore, with the transparent backing, there is no doubt which side is the front of the lifter.
At the bottom of the backing sheet, there is a paper strip on which notes like date and case number can be written.
The main application for the Instant Lifters is fingerprint and palm print lifting. In a number of countries the transparent Instant Lifters are also used to collect and secure hairs and fibers. These Instant Lifters are part of sexual assault kits.