First impressions count: serious detections arising from criminal justice samples
Genomics, Society and Policy 2006 May; 2(1): 28-40
DNA samples on the England and Wales national database matching those found at scenes of serious violent or sexual crimes were identified. The earlier offence leading the sample to appear on the database was noted. The bulk (60-84% according to inclusion criteria) involved theft, drug or other offending. The result, indicating offender versatility, is consistent with most research on criminal careers. Its importance for operational police lies in identifying the contribution made by DNA samples taken after less serious offences in clearing subsequent serious crime, and the importance of taking such samples from as wide a list of apparently trivial crime types as possible. Examining specific relationships between early and later offences revealed a significant link between providing a DNA sample following a drug offence and subsequently committing murder.
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Legislation: New Zealand. An Act (No. 55 of 1995) -- (a) To Make Provision for the Taking of Blood Samples for Use in Criminal Investigations; and (b) To Authorize -- (i) The Establishment of a Databank of Information Derived From the Analysis of Blood Samples Taken From Certain Persons; and (ii) The Use of Information From That Databank in Criminal Investigations; and (c) To Provide for Matters Incidental Thereto. Dated 24 October 1995. (The Criminal Investigations (Blood Samples) Act 1995). Unknown author (1996)