# Criminal Justice Act 2003, Section 104: “Matter in issue between the defendant and a co-defendant”


(1) Evidence which is relevant to the question whether the defendant has a propensity to be untruthful is admissible on that basis under section 101(1)(e) only if the nature or conduct of his defence is such as to undermine the co-defendant’s defence.
(2) Only evidence—
(a) which is to be (or has been) adduced by the co-defendant, or
(b) which a witness is to be invited to give (or has given) in cross-examination by the co-defendant,
is admissible under section 101(1)(e).

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Source: https://www.legislation.gov.uk/ukpga/2003/44/section/104 (the official version)
Page: https://openlegislation.uk/criminal-justice-act-2003/section-104
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.