Most likely what you are talking about is the suppression of evidence, which is to say that the evidence can no longer be used. Any physical evidence provided at trial needs to be authenticated and show the chain of authority to assure that the evidence was never tampered with. If the arresting officer has passed away, arguably some or all of the evidence which he provided could become inadmissible, thus would be suppressed.
Answered on Oct 17th, 2013 at 1:12 PM