There are around 450, 000 dogs in Wales, but the Welsh government says evidence from a database of hospital admissions suggests more are becoming out of control.
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Only identical twins share genetic profiles on all 20 alleles, so if you get a perfect match between the DNA you find at the scene and the DNA database profile, you have very strong evidence that the person in the database committed the crime.
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Criminal database records were introduced into evidence with the names of several of Valle's alleged targets.
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If the justices rule for King, more than 1 million DNA profiles that have been stored in a federal database for matching with future crime scene evidence may have to be purged and others will never be collected, leading some repeat offenders to go free, advocates say.
Also Thursday, prosecutors submitted evidence to support their claim that Valle accessed a national database to look for information about three women -- twice in July 2011 and once in May 2012.
Other violations included committing fraud, mishandling evidence, shop-lifting and making unauthorised use of the FBI database to search for information on friends and family.
On the other hand they also find themselves at pains to explain that one of television's fictional devices an unequivocal match between a trace of a substance found at a crime scene and an exemplar stored in a database, whether it be fingerprints, DNA or some other kind of evidence is indeed generally just fiction.
On Monday, McIntosh labeled the memo's original deletions an "effort to cover up" the database's purpose, and said the newly released portions were the "clearest evidence we have" of what that purpose was.
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Prosecutors also presented evidence that Valle had twice trained on the system and that he would have been instructed not to access the database for personal reasons.
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