29. Prior Convictions — Can You Adduce Them?¶
Scope and currency
Cheat sheet · Evidence Act 2008 (Vic) ss 91, 92, 97, 101, 102–106, 178, 180, 184 + Criminal Procedure Act 2009 (Vic)
Two questions decide everything: WHOSE priors, and FOR WHAT PURPOSE. Against a witness, priors are credibility evidence — barred by s 102, admissible only through s 103 (cross-examination) or s 106 (rebutting a denial). Against the accused, add the s 104 shield — and note that prior convictions do NOT fall within the s 104(3) no-leave categories, so the prosecution ALWAYS needs leave to cross-examine an accused on their record. To prove the facts underlying a conviction (tendency reasoning), s 91 blocks you — a certificate proves the conviction, never the conduct.
The router — whose priors, for what purpose¶
| Whose priors | Purpose | Gateway | Leave? |
|---|---|---|---|
| Any witness | Credit — in cross-examination | s 103 (could substantially affect credibility) | No leave (but s 104 if it is the accused) |
| Any witness | Credit — proving a denied conviction from another source | s 106(2)(b) | No leave — convictions are on the free list |
| The accused | Credit | s 104(2) — and priors are outside s 104(3) | ALWAYS leave, gated by s 104(4) |
| The accused | Credit — cross-examination by a co-accused | s 104(6) | Leave — needs adverse evidence, admitted |
| The accused | Tendency (propensity to act/think) | ss 97 + 101 | Notice + significant probative value + s 101 |
| The accused | Rebutting good character | ss 110(2)–(3), 112 | Leave (s 112) + s 192 factors |
| Proving the conviction | The fact of conviction | s 178 certificate + s 180 identity affidavit | — |
| Proving the conviction | The facts underlying it | BLOCKED by s 91 — see Gate 5 | — |
The decision sequence¶
GATE 1 · CREDIBILITY s 103 Against a witness — cross-examination as to credit
Could the prior conviction substantially affect the assessment of this witness's credibility? s 102 makes credibility evidence prima facie inadmissible; s 103(1) is the cross-examination exception. Prior convictions are credibility evidence where adduced solely to affect the assessment of a witness's truthfulness or veracity. The threshold — "substantially affecting" — is more demanding than the common law test of mere relevance. s 103(2)(a) — nature of the conviction: whether the offence tends to prove the witness knowingly or recklessly made a false representation while under a legal obligation to tell the truth. Dishonesty offences (fraud, perjury, obtain property by deception) carry high probative weight; convictions for violence or traffic offences do not typically bear on veracity. s 103(2)(b) — temporal distance: the period elapsed since the conviction. Stale or historic convictions carry significantly diminished probative weight and are routinely excluded. The forensic standard: the judge determines admissibility by assuming the witness will answer in the manner most favourable to the cross-examiner (Beattie v R). → Dishonesty offending: clearly resonates with s 103(2) — the paradigm case. → Disregard for the law: any offending may clear the bar if it shows disregard for the law or the courts — a drug supply prior was properly put to a defence alibi witness, being "a crime indicating a disregard of a law designed and calculated to reduce harmful conduct within the community" (R v Lumsden [2003] NSWCCA 83). Also goods in custody (Lumsden), robbery (Dodge v Snell [2011] TASSC 19), break and enter, theft, driving in a stolen vehicle. → Too remote: convictions over 50 years old could not have substantial probative value (Montgomery v The Queen [2013] NSWCCA 73).
GATE 2 · CREDIBILITY s 106 Witness denies the conviction — proving it from another source
Can you call independent evidence of the conviction? The general rule: if the witness denies or does not admit the conviction, the collateral evidence rule bars leading independent evidence to rebut, unless an exception applies; s 106(1) generally requires leave. The s 106(2)(b) exception — NO leave required where the independent evidence tends to prove the witness has been convicted of an offence, including an offence against the law of a foreign country. → The three preconditions (s 106(1)(a)): (1) the substance of the conviction must have been put to the witness in cross-examination; (2) the witness must have denied, or failed to admit or agree to, it; and (3) the cross-examination must have been permissible in the first place — i.e. it passed the s 103 substantial-influence threshold. → ⚠ The trap: if cross-examination on the conviction was originally disallowed under s 103, you cannot bypass that by leading independent evidence of it under s 106.
GATE 3 · CREDIBILITY s 104 Against the ACCUSED — the shield
Has the accused thrown away the shield? s 104(2): an accused must not be cross-examined on matters relevant only to credibility — which includes their prior convictions — unless the court gives leave. Priors are NOT in the s 104(3) free list. The no-leave categories are only (a) bias or motive to be untruthful, (b) inability to observe or recall, and © a prior inconsistent statement. Consequently the prosecutor ALWAYS requires leave under s 104(2) to cross-examine an accused on their prior convictions. And "bias" in s 104(3)(a) means an interest over and above the ordinary interest every accused has in the outcome of their trial (Robinson v The Queen (1991) 180 CLR 531; Hargreaves v The Queen (2011) 85 ALJR 1254). s 104(4) — the preconditions are strictly fettered. Leave must not be granted unless evidence adduced by the accused has been ADMITTED that (a) tends to prove a prosecution witness has a tendency to be untruthful, AND (b) is relevant solely or mainly to that witness's credibility. Example: the defence cross-examines a Crown witness on their dishonesty priors to destroy their credit — the accused has thrown away the shield. It must be ADMITTED. Merely putting questions to the Crown witness about their veracity is not enough if the witness rejects the imputation (Odgers). → What does NOT lose the shield (s 104(5)): evidence of conduct in relation to (a) the events being prosecuted — e.g. the accused giving their version of the facts even if it directly contradicts the complainant and implies they are lying; or (b) the investigation — e.g. alleging police fabricated the record of interview or "planted" physical evidence. Defending yourself, or attacking the investigation, does not open the door. → If the accused does not give evidence: s 102 protects them — you can cross-examine a Crown witness on their record without opening up your client, because s 103 applies only in cross-examination of that witness. → Co-accused (s 104(6)): leave only if (a) the accused has given evidence adverse to the co-accused seeking leave, and (b) that evidence has been admitted. Then the judge must have regard to s 192. → Residual discretion: even where s 104(4) is satisfied the court retains a discretion to refuse leave — the trial judge must conduct the s 192(2) balancing (unfairness, importance, and the risk of the jury misusing the priors), together with ss 135, 137 and common-law fairness.
Circular reasoning — the reason leave is so guarded
the court must strictly guard against "circular reasoning" — a jury improperly using credibility evidence of prior convictions to infer a propensity to commit the offence charged. A failure to properly weigh the s 192(2) factors when deciding leave is a major error (Stanoevski v The Queen (2001) 202 CLR 115), and exposing an accused's priors carries an extreme risk of prejudice, so the discretion must be exercised scrupulously and with realistic forensic caution (Melbourne v The Queen (1999) 198 CLR 1).
GATE 4 · ss 97, 101 Priors as TENDENCY evidence
Are you using the priors as substantive proof of propensity, not credit? s 97(1): inadmissible to prove a tendency to act in a particular way or have a particular state of mind unless (a) reasonable written notice; and (b) the court thinks the evidence will have significant probative value — i.e. "important or influential" in proving a fact in issue (TL v The King (2022) 275 CLR 83). Take the evidence at its highest — assume it is credible and reliable; do not discount for veracity or collusion concerns (IMM v The Queen (2016) 257 CLR 300), a principle applied directly to prior convictions and uncharged acts in R v Bauer (2018) 266 CLR 56 (where the acts are against a single complainant, close similarity is not required). s 101(2) — the prosecution's highest hurdle: tendency evidence about an accused adduced by the prosecution cannot be used unless its probative value SUBSTANTIALLY OUTWEIGHS any prejudicial effect. Prejudice here means "reasoning prejudice" (the jury overvalues or misuses the priors) and "emotional prejudice" (conviction to punish past crimes, or because the accused is shown in a discreditable light) (Bauer). → Act vs think: a tendency to act generally carries higher probative weight than a mere tendency to think (McPhillamy v R (2018) 271 A Crim R 353) — but a specific, highly unusual state of mind can still qualify (DPP (NSW) v RDT [2018] NSWCCA 293). → Factual relevance: probative force depends on the number of prior events, their temporal connection, and the degree of similarity (Velkoski v The Queen (2014) 45 VR 680). "Striking similarity" is no longer a prerequisite (Hughes v The Queen (2017) 263 CLR 338), but a vast temporal gap or a lack of common features will dilute probative value (Semaan v R (2013) 39 VR 503). → Appellate review: a s 101(2) decision is reviewed by the appellate court deciding the issue for itself — not on the deferential House v The King standard — because s 101(2) imposes a strict statutory precondition to admissibility, not a pure discretion (DPP (NSW) v RDT).
GATE 5 · ss 91, 92, 178, 180 PROVING it — the s 91 bar and how to get around it
Are you proving the FACT of the conviction, or the FACTS underlying it? s 91(1): evidence of a decision, or of a finding of fact, in an Australian or overseas proceeding is NOT admissible to prove the existence of a fact that was in issue in that proceeding. The critical hurdle: the prosecution cannot use the fact of a prior conviction to prove that the accused actually committed the physical acts or had the state of mind underlying that conviction. So for tendency, you cannot simply tender a certificate of conviction — the conviction itself is barred by s 91(1). This is why the summary of facts and the reasons for sentence in the earlier case cannot be used to formulate a tendency notice. The principle: another person's conviction is not admissible to prove their guilt, and this applies with equal force to the facts underlying an accused's prior convictions (R v Kirkby 2 Qd R 57). → To establish the prior CONDUCT you must: (1) adduce direct, independent evidence of the conduct itself — call the victim or witnesses of the prior offence to testify to what occurred (or rely on the accused's record of interview in that case); or (2) obtain a formal admission of the prior facts from the accused under s 184. → The credibility exception: s 91(1) does NOT exclude a prior conviction adduced solely for a CREDIBILITY purpose (under s 104 or s 106) — because it is not being used to prove a fact in issue in the original proceeding, but rather the fact of the conviction itself as it bears on the witness's general credit. This is how priors get in for credit despite s 91. → s 92 exceptions: s 92(1) — s 91(1) does not prevent admission where the conviction itself is a fact in issue (e.g. a plea of double jeopardy / previous conviction, or where it is an element of an offence such as driving while disqualified). s 92(2) — in civil proceedings s 91(1) does not prevent proof that a party was convicted; s 92(3) — the hearsay and opinion rules do not apply to such evidence. → The mechanism of proof: s 178 — a prior conviction may be proved by tendering a certificate signed by a proper officer of the court, or police, showing (a) the fact of the conviction, (b) the time and place, and © the title of the court. s 180 identity is proved by an affidavit of a member of the AFP (s 180(1)) or state/territory police (s 180(2)) annexing the certificate and confirming identity through matching fingerprint or physical records. → Victorian procedure: under the Criminal Procedure Act 2009 (Vic) (ss 77, 78, 244, 245) a criminal record may be filed and tendered. If the offender admits the convictions the court may sentence accordingly; if they do not, the prosecution must formally prove the disputed convictions using the s 178 certificate and the s 180 identity affidavit (Oberoi v Douglas VSC 7).
Quashed and spent convictions¶
| Category | The rule |
|---|---|
| Quashed | An accused whose prior conviction has been overturned on appeal must be treated as a person without any prior convictions. Any judicial direction on good character must NOT be qualified by reference to the quashed conviction (R v Lapuse VR 43; Saw Wah v The Queen VSCA 7). |
| Spent | An accused is not entitled to elicit evidence of general good character by cross-examining a police officer that they have no priors merely because the convictions are "spent" — that would be a knowing deception of the jury as to the true facts (R v PKS (unreported, NSWCCA, 1 October 1998); R v TAB NSWCCA 274). This is the established NSW position; the Victorian Court of Appeal has yet to fully determine the issue in the context of the Spent Convictions Act 2021 (Vic). |
Case law at a glance¶
| Case | The point it stands for |
|---|---|
| R v Lumsden [2003] NSWCCA 83 | s 103 — any offending may clear "substantially affect" if it shows disregard for the law; a drug supply prior was properly put to a defence alibi witness. Also goods in custody. |
| Dodge v Snell [2011] TASSC 19 | Robbery is a conviction capable of substantially affecting credit. |
| Montgomery v The Queen [2013] NSWCCA 73 | Remoteness — convictions over 50 years old lack substantial probative value (s 103(2)(b)). |
| Beattie v R | Assess s 103 by assuming the witness answers most favourably to the cross-examiner. |
| Robinson v The Queen (1991) 180 CLR 531; Hargreaves v The Queen (2011) 85 ALJR 1254 | s 104(3)(a) — "bias or motive to be untruthful" means more than the accused's general interest in acquittal. |
| R v El-Azzi [2004] NSWCCA 455 | The s 104(2) balancing in action — a corruption prior was highly prejudicial but highly probative; ordinarily prejudice would substantially outweigh, but fairness considerations governed. Not every attack on Crown witnesses warrants leave; counsel must retain substantial flexibility to cross-examine without fear of exposing the client's record. |
| Stanoevski v The Queen (2001) 202 CLR 115 | Failure to weigh the s 192(2) factors on a leave application is a major error; guard against circular reasoning. |
| Melbourne v The Queen (1999) 198 CLR 1 | Exposing priors carries an extreme risk of prejudice — the discretion must be exercised scrupulously. |
| IMM v The Queen (2016) 257 CLR 300; R v Bauer (2018) 266 CLR 56 | Tendency — take the evidence at its highest; single-complainant priors/uncharged acts need no close similarity; reasoning and emotional prejudice defined. |
| Hughes v The Queen (2017) 263 CLR 338; Velkoski v The Queen (2014) 45 VR 680; Semaan v R (2013) 39 VR 503 | Striking similarity is no longer a prerequisite; but number, temporal connection and similarity drive probative force, and gaps dilute it. |
| McPhillamy v R (2018) 271 A Crim R 353; DPP (NSW) v RDT [2018] NSWCCA 293 | Tendency to act outweighs tendency to think — unless the state of mind is specific and highly unusual; s 101(2) reviewed for correctness. |
| R v Kirkby 2 Qd R 57 | s 91 — another's conviction cannot prove their guilt; applies to the facts underlying an accused's priors. |
| Oberoi v Douglas VSC 7 | Victorian sentencing procedure — disputed convictions must be formally proved by s 178 certificate + s 180 identity affidavit. |
| R v Lapuse VR 43; Saw Wah v The Queen VSCA 7 | Quashed convictions — treat the accused as having no priors; do not qualify the good character direction. |
| R v PKS (unreported, NSWCCA, 1 Oct 1998); R v TAB NSWCCA 274 | Spent convictions — cannot elicit "no priors" from police merely because they are spent; that deceives the jury. |
The five traps¶
• Priors are outside s 104(3): the prosecution always needs leave to cross-examine an accused on their record — there is no free-list shortcut.
• The shield is not lost by defending yourself: contradicting the complainant, or alleging the police fabricated the ROI, does not trigger s 104(4) (see s 104(5)).
• It must be admitted, not merely put: if the Crown witness rejects the imputation, the accused has not thrown away the shield.
• s 106 cannot rescue a failed s 103: if the cross-examination was disallowed, you cannot lead the conviction independently instead.
• A certificate proves the conviction, never the conduct: s 91 — for tendency you need direct evidence of the prior conduct, the accused's ROI, or a s 184 admission.