R v GALLAGHER [2001] NSWSC 462

R v GALLAGHER [2001] NSWSC 462

The DNA evidence was admissible because the Profiler Plus system as used by DAL had been properly validated, it was not necessary to know the primer sequences in order to test the reliability of the system, DAL had not failed to follow techniques mandated by Applied Biosystems, the accuracy of results was not undermined by possible confusion between homozygotes and null alleles, and Mr Goetz's proposed evidence was based on specialised knowledge derived from his training, study and experience. The evidence had substantial probative value and there was no danger of unfair prejudice to the accused if it were admitted.

Jurisdiction
Australia
Judgment Date
04 May 2001
Procedural Posture
Criminal Proceeding / Ruling on Objection to the Tender of Evidence of DNA Test Results
Outcome
Evidence held admissible
Legal Topics
['dna Evidence' 'expert Opinion Evidence' 'profiler Plus System' 'admissibility' 'probative Value' 'unfair Prejudice']
['evidence' 'criminal Law'] ['dna Evidence' 'expert Opinion Evidence' 'profiler Plus System' 'admissibility' 'probative Value' 'unfair Prejudice']

Case Brief

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Procedural Posture

Criminal Proceeding / Ruling on Objection to the Tender of Evidence of DNA Test Results

Legal Issues

  1. 1 ["Whether evidence of DNA test results was based on the witness' specialised knowledge based on training, study and experience under s 79 of the Evidence Act 1995 (NSW)." 'Whether the Profiler Plus system as used by the New South Wales Department of Analytical Laboratories Forensic Science Biology Laboratory was properly validated.' 'Whether it was necessary to know the primer sequences in order to test the reliability of the Profiler Plus system.' 'Whether the evidence of DNA test results had substantial probative value.' 'Whether admission of the DNA test results gave rise to a danger of unfair prejudice to the accused under s 137 of the Evidence Act 1995 (NSW).']

Ratio Decidendi

The DNA evidence was admissible because the Profiler Plus system as used by DAL had been properly validated, it was not necessary to know the primer sequences in order to test the reliability of the system, DAL had not failed to follow techniques mandated by Applied Biosystems, the accuracy of results was not undermined by possible confusion between homozygotes and null alleles, and Mr Goetz's proposed evidence was based on specialised knowledge derived from his training, study and experience. The evidence had substantial probative value and there was no danger of unfair prejudice to the accused if it were admitted.

Court Disposition

Evidence held admissible

Orders

  • ['The evidence of Mr Robert Goetz of the DNA test results was admissible.']