How To Get Finger Prints At A Crime Scene?

With improvement in science and technology there are various ways by which one can collect finger prints at a crime scene. Ninhydrin spray, silver nitrate spray, iodine fuming and super glue fuming are the various new techniques through which one can collect finger prints. These techniques use the help of certain chemicals producing finger prints which go back to thirty years.

The most common method of collecting finger prints which one always observes in all those detective movies is brushing. One normally finds finger prints easily on plastic. Now there are visible prints and latent prints. The latter are invisible prints which require dusting to be discovered.

Most of the people bear a coating of perspiration and oil. Thus when their fingers come in contact with any surface it tends to leave a mark. When powder comes in contact with these invisible prints the oil gets stuck to the powder leaving a pattern. Using adhesive products like cellophane tape lifting the print becomes possible. That is, one covers the print area carefully with the tape. Once the print is fixed on the tape gently remove the tape and they stick it up a board. Thus one easily achieves finger prints from a crime scene.

If you wipe the surface where your fingerprints were will the police be able to find them

Using Black crime-scene powder lightly dust the fingerprint untill it is clearly visible.