R v TH; R v MT; R v ME; R v MC [2023] NSWDC 384

R v TH; R v MT; R v ME; R v MC [2023] NSWDC 384

Although Detective Sergeant Groenewegen had specialised knowledge based on study and experience sufficient to give opinions about Nomads membership, office-holding and hierarchy, the opinions had low probative value in the circumstances because other direct evidence was said to be available and parts of the assumed factual basis, including photographs and dates, might not be proved. The hierarchy evidence also risked unfairly suggesting command, obedience or violence within an outlaw motorcycle gang, requiring directions that could be misleading, confusing or over-emphasise the evidence. The probative value of the reports was outweighed by the danger of unfair prejudice under s 137 in the...

Jurisdiction
Australia
Judgment Date
17 March 2023
Procedural Posture
Criminal / Pre Trial Procedural Ruling on Objection to Tender of Expert Reports
Outcome
The expert reports were excluded in each of the joint trials.
Legal Topics
['expert Evidence' 'opinion Evidence' 'specialised Knowledge' 'unfair Prejudice' 'outlaw Motorcycle Gangs' 'section 137 Evidence Act Exclusion' 'section 135 Evidence Act Discretion']
['criminal Law' 'evidence Law' 'criminal Procedure'] ['expert Evidence' 'opinion Evidence' 'specialised Knowledge' 'unfair Prejudice' 'outlaw Motorcycle Gangs' 'section 137 Evidence Act Exclusion' 'section 135 Evidence Act Discretion']

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Procedural Posture

Criminal / Pre Trial Procedural Ruling on Objection to Tender of Expert Reports

Legal Issues

  1. 1 ["Whether the police officer's opinions about outlaw motorcycle gangs and the Nomads motorcycle group were relevant." 'Whether the opinions were admissible under s 79 of the Evidence Act 1995 (NSW) as opinions wholly or substantially based on specialised knowledge derived from training, study or experience.' 'Whether the reports should be excluded under ss 135 or 137 of the Evidence Act 1995 (NSW) because their probative value was low and outweighed by the danger of unfair prejudice, or because they risked being misleading or confusing.']

Ratio Decidendi

Although Detective Sergeant Groenewegen had specialised knowledge based on study and experience sufficient to give opinions about Nomads membership, office-holding and hierarchy, the opinions had low probative value in the circumstances because other direct evidence was said to be available and parts of the assumed factual basis, including photographs and dates, might not be proved. The hierarchy evidence also risked unfairly suggesting command, obedience or violence within an outlaw motorcycle gang, requiring directions that could be misleading, confusing or over-emphasise the evidence. The probative value of the reports was outweighed by the danger of unfair prejudice under s 137 in the...

Court Disposition

The expert reports were excluded in each of the joint trials.

Orders

  • ['The reports dated 19 May and 17 November 2020 purporting to express expert opinions in respect of outlaw motorcycle gangs are excluded in each of the joint trials of MC, MT, ME and TH under s 137 of the Evidence Act 1995 (NSW).']