Osment v R.

Factual and Procedural Background

The Appellant was convicted by a majority of 10 to 2 in the Crown Court at Bristol of murdering Victim A, whose body was never found. He was sentenced to life imprisonment with a minimum term of 20 years, reduced by time spent on remand. [1][2]

The prosecution relied on evidence that Victim A disappeared after leaving a public house, was expected to meet the Appellant, and was never subsequently seen or heard from. It also relied substantially on alleged admissions made by the Appellant to several people over a number of years. [3][4][5][6][7][8][9]

The Appellant sought permission to appeal on Grounds 1 to 4 concerning undercover evidence and expert evidence, and on Ground 7 concerning the prosecution’s failure to disclose that Witness A, who had been present at the public house, had later been convicted of rape and attempted rape. [1][10][11][12][13][14][15]

Legal Issues Presented

1. Whether the trial judge erred by admitting evidence obtained by an undercover police officer under sections 76 and 78 of the Police and Criminal Evidence Act 1984. [16][17][18]
2. Whether the trial judge wrongly excluded expert evidence concerning the reliability and suggestibility of the Appellant’s alleged confessions. [19][20][21][22][23]
3. Whether the prosecution’s failure to disclose Witness A’s convictions rendered the conviction unsafe, including whether that evidence would have been admissible as non-defendant bad-character evidence under section 100 of the Criminal Justice Act 2003. [10][24][25][26][27]

Arguments of the Parties

Appellant’s Arguments

• The Appellant argued that the undercover confessions should have been excluded because they were obtained through oppression, improper tactics, or circumstances likely to render them unreliable. [16][17]
• He argued that the expert evidence of Professor A should have been admitted because of Professor A’s specialised expertise in suggestibility and confessions. [19][20]
• He argued that the evidence of Professors B and C should have been placed before the jury on false confessions, police tactics, vulnerability, and reliability. [22][28]
• He submitted that Witness A’s convictions represented a sufficiently similar predatory attack to be admissible and capable of supporting the possibility that Witness A had killed Victim A. [29][30][31]

Respondent’s Arguments

• The Respondent submitted that the undercover operation was properly authorised and reviewed, that the Appellant’s vulnerabilities had been overstated, and that the recorded conversations enabled the jury to assess reliability. [18]
• The Respondent opposed Professor A’s evidence because Professor A had not examined the Appellant, had not reviewed the recordings, and would add nothing to the evidence already available. [32]
• The Respondent argued that Professors B and C lacked the necessary expertise for the issues at trial and that their proposed evidence substantially concerned matters for the jury. [33]
• The Respondent accepted that the convictions should have been disclosed but disputed that they would have been admissible or had substantial probative value regarding the Appellant’s responsibility for the murder. [34][25][35][36]

Table of Precedents Cited

Court's Reasoning and Analysis

The Court upheld the exclusion of Professor A’s evidence. Other experts had examined the Appellant or reviewed substantial material, and the clinical psychologists agreed that he was susceptible to “shift” but not “yield.” Professor A had not examined the Appellant, conducted tests, or reviewed the undercover recordings. His proposed evidence would either duplicate the existing evidence or intrude upon the jury’s assessment of reliability. [21][44][45][46][37][38]

The Court also upheld admission of the undercover evidence. The trial judge had considered the Appellant’s alcohol dependency, depression, anxiety, financial dependence on the undercover officer, and the changing tactics used during the operation. The judge nevertheless found no oppression, no improper interrogation, and no circumstances likely to render the confessions unreliable. [47][48][49][41][50][42][51]

The Court agreed that the expert evidence of Professors B and C was inadmissible at trial. Their general evidence about false confessions and police tactics was either covered by the clinical evidence or concerned the ultimate question whether the Appellant’s actual admissions were reliable, which was for the jury. [23][52][53][54]

Regarding Witness A, the Court accepted that the convictions ought to have been disclosed. However, section 100 required substantial probative value on an important issue. The similarities relied upon were limited: both incidents involved a woman who was alone, intoxicated, and out at night. The evidence did not substantially demonstrate that Witness A was responsible for Victim A’s murder. [34][24][27][55][56][57][58]

The Court considered the wider evidence, including the Appellant’s multiple admissions, evidence that Victim A expected to meet him, inconsistencies in his accounts, and evidence of violence towards women with whom he had relationships. That evidence supported the prosecution case independently of Witness A’s convictions. [59][60][61][62][63]

The Court concluded that the Witness A evidence would have been inadmissible because it lacked substantial probative value on the principal issue. It therefore declined to receive it as fresh evidence on appeal. [64][65]

Holding and Implications

Permission to appeal on Grounds 1 to 4 was refused, and Ground 7 failed. The appeal and the renewed applications for permission to appeal were dismissed. [66][67][65][68]

The conviction and sentence therefore remained undisturbed. The opinion identifies no broader consequence beyond the direct effect on the Appellant; no new precedent was stated to have been established.