Forensic Pocket Guide

Lab Processing

BLOODY SURFACES

Non-Porous Surfaces

Inspect the surface for the presence of trace evidence and/or ridge detail.  Carefully collect any trace evidence observed. Photograph any ridge detail observed with one-to-one photography.

Swab areas that have potential DNA present.  For more guidance on swabbing, refer to this resource: DNA Collection.

Prior to processing, use a forensic light source to inspect the surface of the item for trace evidence and/or latent print impressions.  For more guidance on what light source to utilize, refer to this resource: Forensic Light Sources.  Photograph any ridge detail observed with one-to-one photography.

Use a forensic light source to visualize any latent print impressions that have developed.  For more guidance on what light source to utilize, refer to this resource: Forensic Light Sources.  Photograph any ridge detail observed with one-to-one photography.

Fume items of evidence with Cyanoacrylate Ester Fuming and Vacuum Chamber.  Photograph any ridge detail observed with one-to-one photography.

Use a forensic light source to visualize any latent print impressions that have developed.  For more guidance on what light source to utilize, refer to this resource: Forensic Light Sources.  Photograph any ridge detail observed with one-to-one photography.

Apply one of the following to the surface:

Ardrox

Basic Red

Basic Yellow

MBD

MRM 10

Nile Red

RAM

RAY

Rhodamine 6G

Safranin O

Photograph any ridge detail observed with one-to-one photography.

Use a forensic light source to visualize any latent print impressions that have developed.  For more guidance on what light source to utilize, refer to this resource: Forensic Light Sources. Photograph any ridge detail observed with one-to-one photography.

Apply one of the following to the surface:

Standard Powder

Magnetic Powder

Fluorescent Powder

Photograph any ridge detail observed with one-to-one photography and/or collect with a latent print collection technique.

Porous Surfaces

Inspect the surface for the presence of trace evidence and/or ridge detail.  Carefully collect any trace evidence observed. Photograph any ridge detail observed with one-to-one photography.

Swab areas that have potential DNA present.  For more guidance on swabbing, refer to this resource: DNA Collection.  Photograph any ridge detail observed with one-to-one photography.

Prior to processing, use a forensic light source to inspect the surface of the item for trace evidence and/or latent print impressions.  For more guidance on what light source to utilize, refer to this resource: Forensic Light Sources.  Photograph any ridge detail observed with one-to-one photography.

Apply DFO to the surface. Photograph any ridge detail observed with one-to-one photography.

Apply one of the following to the surface:

5-MTN

1,2 Indane Dione

Ninhydrin

Photograph any ridge detail observed with one-to-one photography.

Apply one of the following to the surface:

Amido Black

Coomassie Blue

DAB

Photograph any ridge detail observed with one-to-one photography.

Apply Physical Developer to the surface. Photograph any ridge detail observed with one-to-one photography.