|Posted on Tuesday, September 26, 2000 - 05:19 am: ||
Lynn Peavey Co. makes a product called wet print, you might contact them at 1-800-255-6499. I have had some good sucess with this product
|Posted on Monday, May 22, 2000 - 10:27 pm: ||
If not too dirty from sediment, here's one approach:
1. Visible exam with a good spotlight or flashlight for direct reflection and normal illumination - photo any identifiable prints (at this point and after each step below).
2. Cyanoacrylate fume the entire trunk lid in a modified plastic tent with high humidity.
2. Small Particle Reagent (SPR).
3. Gently rinse any excess sediment from the surface with clean water and try SPR again.
4. Allow the surface to completely dry and again view for any visible prints (may work well if the trunk lid is shiny after rinsing).
5. Dust with contrasting colored powder.
6. Rinse the surface with Rhodamine 6G or another dye stain that will tag the cyanoacrylate fumes. Permit to dry completely before luminescence exam (laser/alternate light source/UV light).
7. As the final step (after you have done all other techniques), put on a surgical glove and dip it in black powder (light colored powder if the trunk lid is dark). Gently rub the powder over the surface... often building up powder in between cyanoacrylate developed ridges that may not have developed by any other method.
As with any processing techniques, it is a good idea to try the sequence on an innocuous area of the vehicle exterior to see the result before you concentrate on the area of interest (trunk lid). Don't forget the rear view mirror.
Constable S T Rumney - New Zealand
|Posted on Monday, May 22, 2000 - 06:25 pm: ||
I am a Scene of Crime Officer in Palmerston
North New Zealand.
I would like to here from any fingerprint /crime
scene staff who have dealt with fingerprinting
a vehicle which has been submerged in water
- i.e. a lake.
The vehicle which we have has been
submerged for up to 4 days and has a fine
sediment over it's exterior. It is thought that
someone may have pushed the vehicle into
the water - therefore we would like to examine
the exterior - boot lid for fingerprints.
Can anyone assist?