When I started Law Enforcement back in the 80's, we would carry a can of Extra Hold Aquanet in our kits. Before pouring the plaster we would spray the impression with the hairspray to make it more rigid. this would reduce the chance of any details collapsing or becoming obscured. Is this technique still used?
You can use as many focals you need important îs to man tain The same distante between questioned foot print and photograhy plan and this distante must be same with compari ng foot print
1. Can we collect allele/gene from used utensil or clothes? 2. Can allele/gene be collected from a blade which has been washed once as in there was no blood visible by naked eyes?
1. Can we collect allele/gene from used utensil or clothes? 2. Can allele/gene be collected from a blade which has been washed once as in there was no blood visible by naked eyes?
If someone gave you a report that said blood was not detected on an item. However a sample was taken from said item and labeled at said item-1 The swab sample had the person in questions DNA. So what was the DNA that was found if no blood was detected on the item itself? The case is a male suicide victim gunshot to the head.
When putting the gloves on he did not follow an aseptic approach and actually possibly contaminated the first glove he put on with his DNA when he went to put the second glove on.....
It could damage the footprint !! Also, you'd have to take other pictures of the footprint on the gel and the plastic could cause difficulties because of it's reflective capacity so it's not the best
This is incorrect, especially for UK proceedure, you should never swab from the centre of a stain, and also use wet and dry swabbing with sterile water!! Please, UK students, do NOT follow this!