Director of Public Prosecutions v McD.

Factual and Procedural Background

On the evening of 19 August 2011 firefighters and police officers responded to a blaze in the underground car park of an apartment complex in The City. An individual later identified as the Accused/Respondent was discovered inside the locked gate, admitted trespassing and was arrested. He was detained, interviewed three times, and released without charge the following day. Subsequent forensic work on a petrol cap and the recovery of CCTV footage prompted officers to obtain a warrant and re-arrest him on 16 November 2011 for further questioning, after which he was charged with burglary, endangerment and arson.

At his trial in early 2014, the trial judge:

• excluded the CCTV footage after a voir dire on the basis that its operation had not been proved, and
• excluded the memorandum of a November interview on the ground that section 19 of the Criminal Justice Act 1984 (“the 1984 Act”) had been wrongly invoked, rendering the answers potentially involuntary.

With no remaining probative evidence, the jury was directed to return verdicts of not guilty. The Prosecutor/Appellant invoked section 23 of the Criminal Procedure Act 2010 (“the 2010 Act”) to appeal those evidential rulings with prejudice, seeking to quash the acquittal and obtain a retrial.

Legal Issues Presented

1. Whether the trial judge erred in law by holding that CCTV footage required proof of the camera’s technical functioning before it could be admitted, thereby treating it as potential hearsay rather than real evidence.
2. Whether the trial judge erred in ruling that officers were not entitled to invoke section 19 of the 1984 Act during the second detention, and in concluding that the resulting interview was involuntary and inadmissible.
3. Whether, if those rulings were erroneous, the Supreme Court should exercise its powers under section 23 of the 2010 Act to quash the acquittal and order a retrial.

Arguments of the Parties

Prosecutor/Appellant's Arguments

• CCTV is automatically generated real evidence; proof of internal mechanics is unnecessary. Lack of technical detail goes to weight, not admissibility.
• Section 19 was properly invoked: the Accused/Respondent refused to engage with fresh evidence during the November detention, satisfying the statutory pre-conditions.
• Even if section 19 had been mis-invoked, the Respondent’s admissions were voluntary and should not have been excluded.
• The excluded materials constitute “compelling evidence” under section 23(14) of the 2010 Act; justice requires a retrial.

Accused/Respondent's Arguments

• Without evidence of how the CCTV system operated, the footage might be the product of human selection and therefore hearsay; the trial judge correctly followed Judge McKechnie’s previous Court of Criminal Appeal decisions.
• He had already provided an account of his presence during the first detention; therefore officers could not lawfully rely on section 19 during the second detention. The later admissions were obtained under improper statutory pressure and were involuntary.
• Given the lapse of time and the Prosecutor’s earlier failure to prove its case, a retrial would be unfair and contrary to the interests of justice.

Table of Precedents Cited

Court's Reasoning and Analysis

CCTV Footage: The Court (per Judge McKechnie) held that CCTV images are generated automatically and do not “pass through a human mind.” Accordingly they are real evidence, not hearsay. None of the authorities on computer print-outs required technical proof of camera mechanics. Provenance and chain of custody were adequately demonstrated through Officer A and the complex’s manager; any remaining issues affected weight, not admissibility. The trial judge therefore erred in excluding the footage.

Memorandum of Interview: The Respondent’s limited explanations during the first detention did not preclude officers from invoking section 19 during the second detention because new, highly incriminating evidence (CCTV and forensic results) had since emerged. During the November interviews he refused to engage with that new evidence, amounting to a failure to account “in the circumstances at the time.” Section 19 was therefore properly activated, and the subsequent admissions were not rendered involuntary by statutory pressure. The trial judge’s ruling was based on a misinterpretation of the statute.

Section 23 Analysis: Both excluded items constituted “compelling evidence” (reliable, probative, and capable of persuading a jury). The Court emphasised that section 23 appeals must not be used routinely, but found that a retrial was nevertheless in the interests of justice: the passage of time was not excessive, physical exhibits remain available, and the charges are serious.

Holding and Implications

HOLDING: The acquittal is QUASHED and a RETRIAL is ordered.

Key implications include:

• Authoritative confirmation that standard CCTV footage is real evidence; technical proof of camera mechanics is unnecessary for admissibility, though provenance and integrity must still be established.
• Clarification of when section 19 of the 1984 Act may be invoked in successive detentions—new evidential contexts can revive the obligation to account.
• The judgment cautions prosecutors against routine use of “with prejudice” appeals under section 23 of the 2010 Act, but recognises their legitimacy where compelling evidence was erroneously excluded.