Protocol for processing a crime scene
for physical evidence
The protocol is based on ICSIA’s Crime Scene Processing Protocol.
Interview, examine, photograph, sketch and process
i. Blood marks, patterns
ii. Seminal or Vagina Fluid
iii. Other suspicious stains.
i. Superglue fume non-porous objects if possible.
ii. Use contrasting powders to process for ridge detail.
iii. Photograph all prints prior to recovering them.
iv. Lift the prints and properly mark the backer cards with exhibit number, case information and where the lift was recovered.
1. If using fluorescent powder mark the lifts with “FLO”
2. Always indicate on lift with an arrow the direction of up or away from you for proper viewing orientation.
The scene to be processed must be cordoned and secured properly to preserve the integrity of the evidence.
We recommend a Crime Scene Log to identify who was in the scene, when and why.
Always consider the Secondary Scene.
Elimination prints (Major case prints) must be obtained from those who have legal access to the scene and if bodily fluid is found then elimination DNA should also be collected.