Vixen
Penultimate Amazing
Criminal law is based on statistically probability so matches in forensics, eg., fingerprints, DNA, etc, are expressed in terms of probabilities against (using the scientific null hypothesis).
At this juncture it might be apposite to remind ourselves that the DNA found on the bra clasp, which was under the body, under the sheet, the body itself covered by a duvet and sprinkled with scattered paper supposedly from the burglary (found to be fake and established as legal fact) has a negative comparison of 1/>3bn that it is NOT Raff's DNA. Thus it is beyond reasonable doubt it is his.