2. PHYSICAL METHODS OF DEVELOPING
LATENT PRINTS
• Dusting / Brush on / Powder
Method
- This is done with the use of
fingerprint brush and powder
by applying amount of powder
that is lightly swept on the
suspected area to little by little
reveal the print caused by the
powder
3. Rolling / Rocking Method
- Powder is put on the
suspected surface of a
material/object. Then in
slanting position, the
material/object is rolled
slightly to attach powder in
the fingerprint.
4. Spray Method
- The powder is put into an empty
container specially designed for
spraying.
5. Transplant Method
- The latent print is powdered and
lifted ready to be pasted to a
paper with opposite color from
that of the color of powder used.
6. Kromekote Lift Method
- Provides the forensic science
technician with an inexpensive
and practical technique for
recovering latent fingerprints from
human skin.
7. CHEMICAL METHODS OF DEVELOPING
LATENT PRINTS
• Ninhydrin Method
- This destroys writings on
absorbent materials like papers.
This is used to detect latent prints
on absorbent materials, white
wood, blood stained fingerprint,
paper wrapping of cigarette stick,
etc
8. Tetramethyl Benzedrine Method
- The chemical formula for this is
CH oN 16 2 2
- With this method, the invisible
amount of blood stained
fingerprints can be detected.
