Collection of Semen Samples

Proper collection and preservation of semen evidence are essential in forensic investigations.

1. Documentation

Evidence should be documented using:

• Photography

• Videography

• Sketching

2. Collection of Liquid Semen

• Collect using clean cotton gauze or cloth

• Allow to air dry at room temperature

3. Collection of Dried or Wet Seminal Stains

• Use sterile cotton swabs

• Air dry completely before packaging

4. Collection of Stained Articles

Items containing semen stains may include:

• Bed sheets

• Garments

• Napkins

• Pillows

• Used condoms

These should be collected as whole evidence whenever possible.

5. Sexual Assault Cases

Samples may include:

• Vaginal swabs

• Oral swabs

• Anal swabs

• Breast swabs

These must be collected by qualified medical professionals, properly dried, labeled, sealed, and preserved.

Mad Forensics