Those are not police evidence bags their evidence stickers that can be bought online(pic 3) John Doe is more likely personally investigating Nelson and gathering evidence but does not have any legal
Police Evidence Exhibit Bags - Selles Medical
CHARCOAL
Amazon.com: Evidence Bags, Paper and Plastic Sample Pack (12 bags) : Health & Household
Police Evidence Bag - Sml [WAPPEBSML] - £12.00 : Quicksilver UK Ltd, Special Effects - Supplies & Solutions
Operation Jurassic Book - Roxana Allison Photography
Evidence Bags
Police Evidence Exhibit Bags - Selles Medical
Police Evidence Bag Photograph by Gary Smith/science Photo Library - Pixels
Evidence bag hi-res stock photography and images - Page 2 - Alamy