Cases of planted evidence

I was kind of hoping we might create a semi-archive of cases of planted evidence in cases

I thought I would start with David Kofoed - Planted evidence in the case of Matthew Livers and Nick Sampson.
Edit: Adding a link
http://ift.tt/1G4Q28v

Also,what came be done to prevent such cases?

via International Skeptics Forum http://ift.tt/1EBK4o8