R v Hanson [2005] EWCA Crim 824
R v Hanson gave early authoritative guidance on admitting a defendant's previous convictions as evidence of propensity under the Criminal Justice Act 2003. Similarity, age and number all require careful assessment.
Facts
The Court of Appeal heard three joined appeals concerning the new statutory rules on defendants' bad character. In each trial, the prosecution had relied on previous misconduct or convictions to argue that the accused had a propensity either to commit offences of the kind charged or to be untruthful. The appellants challenged the relevance and fairness of that material under sections 101 and 103 of the Criminal Justice Act 2003. The cases raised recurring practical questions: whether offences within the same statutory category automatically demonstrated propensity, how much similarity was needed, what weight should be given to old or isolated convictions, and how juries should be directed so that past wrongdoing was not treated as proof of present guilt.
Legal Issue
How should courts decide whether previous convictions establish an important propensity under section 103, and what safeguards govern their admission and use?
Held
The Court of Appeal held that statutory descriptions and categories can assist but do not make evidence automatically admissible or probative. The judge must examine the nature, number, similarity and age of previous offences and ask whether they truly support the alleged propensity and whether that propensity makes a matter in issue more likely. A single conviction may sometimes suffice, especially where it reveals an unusual pattern, while several old or dissimilar convictions may add little. Even relevant evidence may be excluded under section 101(3) where admission would have such an adverse effect on trial fairness that it ought not be admitted. The jury must receive a careful direction against assuming guilt merely from bad character.
⭐ Legal Principle
Under sections 101(1)(d) and 103 of the Criminal Justice Act 2003, previous misconduct is admissible for propensity only where its actual features make the propensity relevant to an important matter in issue. Shared labels do not replace case-specific evaluation, and fairness remains an express safeguard.
Significance
Hanson remains the starting point for propensity evidence under the 2003 Act. It rejects both extremes: previous convictions are not inadmissible merely because they are prejudicial, but neither are convictions within the same category automatically proof of disposition. The judgment requires structured attention to probative value, remoteness, similarity and fairness. It also stresses accurate jury directions, because the evidence supports an inference rather than proving the charged offence by itself. Later cases have refined the statutory gateways, but the practical Hanson questions continue to guide trial judges.
Common exam questions about this case
Does a previous offence of the same statutory description automatically prove propensity?
No. Section 103 permits statutory descriptions and categories to identify potentially relevant convictions, but the court must still assess their real probative value. Similarity of label may conceal very different conduct. The judge considers the facts, number, pattern and age of the offences and whether they genuinely make an important issue in the current trial more likely.
Can one previous conviction ever establish propensity?
Yes, but not automatically. One conviction may be strongly probative where its circumstances reveal a distinctive or closely comparable pattern. Conversely, even several convictions may have little value if they are remote, dissimilar or too commonplace to illuminate the disputed issue. Hanson requires evaluation of substance rather than a numerical rule about the minimum number of convictions.
What protection remains after bad-character evidence is found relevant?
Where the prosecution relies on the propensity gateway in section 101(1)(d), the court must consider the statutory fairness power in section 101(3). It may exclude the evidence if admission would adversely affect fairness to such an extent that it ought not be admitted. If admitted, the jury must be warned not to treat past misconduct as automatic proof of guilt.