A good question. The question raised was, before I am starting to wash or clean the hand, do I do any type of forensics or other biological evidence from the hands, and I do.
Once the bags are removed, they are documented with pictures and in this particular case, I did do scraping underneath the nails to get material which is then submitted for analysis. And I also took fingernail clippings from both hands, which is submitted for evidence.
And the actual clipper that I actually used to remove the finger nails, that is also submitted as evidence. So all of those things are done before the hand has been altered or washed. And then at that point once I have taken the fingernail clippings and the scrapings, then I go ahead and wash the hands and then continue my process.