AI-generated summaries. Not legal advice. Always verify against the official judgment on NSW Caselaw.
← All decisions
District Court 14 October 2016

R v Lineham

[2016] NSWDC 247

Drugs
DRUG OFFENCES SUPPLY PROHIBITED DRUG REPRESENTATIVE DRUG TESTING

Citation: R v Lineham [2016] NSWDC 247
Court: District Court of NSW
Date: 14 October 2016
Judge(s): Hatzistergos DCJ

Background

The offender pleaded guilty to two charges of supplying a prohibited drug under s 25(1) of the Drug Misuse and Trafficking Act 1985 (NSW): one charge involving cocaine and one involving MDMA (ecstasy). A sentencing hearing followed the conclusion of a separate judge-alone trial involving the same offender.

A dispute arose at sentencing regarding the total quantity of cocaine the offender was to be sentenced upon. Police had seized a security bag containing 18 small resealable bags of suspected cocaine from a vehicle on 17 May 2014. The prosecution's forensic analyst had tested only nine of the 18 bags, not all of them.

The offender's counsel argued that the untested nine bags could not be proven to contain cocaine beyond reasonable doubt. The court was therefore required to determine what quantity of cocaine had been established by the evidence.

Legal Issues

  • Whether the analyst's testing of only nine of the 18 resealable bags was sufficient to establish beyond reasonable doubt that all 18 bags contained cocaine
  • Whether visual differences between the bags (some appearing as powder, others as rock) raised a reasonable doubt as to the contents of the untested bags
  • The total weight of cocaine properly attributable to the offender for sentencing purposes

Decision

Issue 1: Whether partial testing established the full quantity of cocaine

The forensic analyst, Mr Ewers, confirmed he had tested nine of the 18 resealable bags and identified their contents as cocaine with a purity of 44.5%. During cross-examination, he conceded he could not be certain the nine untested bags contained the same substance. He also accepted that cocaine can vary in colour and form, appearing as white or off-white powder or as rock (at [6]-[7]).

Despite these concessions, the court rejected the submission that a reasonable doubt existed as to the untested bags. No suggestion was advanced that Mr Ewers' sampling was anything other than random, and no argument was made that the packaging indicated any discrimination in the contents between bags (at [10]).

Issue 2: The "overwhelming inference" principle

The court applied the approach established in two unreported NSW Court of Criminal Appeal decisions, R v Lee Martin Cotterill and R v Pilley. Those decisions support the proposition that where random sampling is conducted without any basis for distinguishing between tested and untested portions, the "overwhelming inference" is that the whole of the contents are of the same quality as the tested sample (at [11]).

The court noted Mr Ewers' own evidence that any shade difference between the bags was negligible and that they all appeared to have a "yellowy tinge," which was consistent with a uniform batch (at [10]-[11]). On that basis, the court was satisfied beyond reasonable doubt that all 18 bags contained cocaine, giving a total weight of 11.5 grams at 44.5% purity.

Orders Made

  • The offender was found to have been in possession of 11.5 grams of cocaine, a prohibited drug.

Key Takeaways

  • Where a forensic analyst conducts random sampling of multiple packages suspected of containing a prohibited drug, the "overwhelming inference" principle from R v Cotterill and R v Pilley can support a finding beyond reasonable doubt that all packages contain the same substance, even where only a portion is tested (at [11]).
  • An analyst's concession that they cannot be "certain" untested packages match the tested sample does not, by itself, create a reasonable doubt sufficient to reduce the quantity attributed to an offender for sentencing purposes (at [9]-[11]).
  • The absence of any discriminating features between packages, such as differences in appearance or packaging, is a significant factor in applying the overwhelming inference principle (at [10]).
  • Under s 43 of the Drug Misuse and Trafficking Act 1985 (NSW), a properly issued analyst's certificate establishes the weight and composition of a tested substance; the decision illustrates how that certificate interacts with the representative sampling principle at sentence (at [3], [11]).
  • R v Olbrich (1999) 199 CLR 270, which requires the prosecution to prove disputed sentencing facts beyond reasonable doubt, does not preclude reliance on inferences drawn from representative sampling where no factual basis to distinguish untested portions is established (at [9]-[11]).

Legislation and Cases Referenced

Legislation
- Drug Misuse and Trafficking Act 1985 (NSW) ss 25(1), 43
- Drug Misuse and Trafficking Regulation 2011 (NSW)

Cases
- R v Olbrich (1999) 199 CLR 270; [1999] HCA 54
- Duffy v R; Mangan v R [2009] NSWCCA 304
- R v Lee Martin Cotterill (Unreported, NSW Court of Criminal Appeal, 7 June 1993)
- R v Pilley (Unreported, NSW Court of Criminal Appeal, 2 May 1991)
- R v O’Neill [1979] 2 NSWLR 582