R. v. Z., L.

R. v. Z., L.

Where a preliminary inquiry that was validly commenced is used predominantly to elicit compelled testimony from a separately charged witness for the collateral purpose of creating inculpatory evidence against that witness, admission of derivative evidence produced as a result renders the subsequent trial unfair...

Source-derived case information.

Citation
C31434
Parties
Appellant: L. Z. (a young person); Respondent: Her Majesty the Queen
Court
Court of Appeal for Ontario
Jurisdiction
Canada
Judgment Date
22 May 2001
Procedural Posture
Criminal / Appeal From Conviction
Outcome
Conviction set aside; new trial ordered
Legal Topics
Self Incrimination, Compellability, Preliminary Inquiry, Abuse of Process, Derivative Evidence, Stay of Proceedings, Exclusion of Evidence
Source Language
en
Criminal Law Constitutional Law Evidence Procedure Self Incrimination Compellability Preliminary Inquiry Abuse of Process +3 more

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Parties

L. Z. (a young person)

Appellant

Her Majesty the Queen

Respondent

Procedural Posture

Criminal / Appeal From Conviction

  1. 1 Whether subpoenaing the appellant to testify at a co-accused's preliminary inquiry constituted an abuse of process
  2. 2 Whether derivative use immunity arises from testimony compelled at a preliminary inquiry
  3. 3 Whether testimony obtained from other witnesses as a result of the appellant's compelled testimony must be excluded as derivative evidence

Ratio Decidendi

Where a preliminary inquiry that was validly commenced is used predominantly to elicit compelled testimony from a separately charged witness for the collateral purpose of creating inculpatory evidence against that witness, admission of derivative evidence produced as a result renders the subsequent trial unfair under s.7 and such derivative evidence must be excluded (and may be excluded under s.24(1)); applying that principle here, Borba's inculpatory preliminary-hearing evidence was derivative of the appellant's compelled testimony, should have been excluded, and the appellant's conviction must be set aside and a new trial ordered.

Court Disposition

Conviction set aside; new trial ordered

Orders

  • Conviction set aside
  • New trial ordered