The latter. Partial matches are one concern (where someone comes and asks you questions because they think one of your relatives that you&#x27;ve never met may have committed a crime), but laboratory errors and general investigational misconduct are the big one (e.g. <a href="http:&#x2F;&#x2F;www.cbsnews.com&#x2F;news&#x2F;dna-testing-foolproof&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.cbsnews.com&#x2F;news&#x2F;dna-testing-foolproof&#x2F;</a> from 2003, or a Brandon Mayfield like situation with DNA instead of fingerprints).