http://www.legislation.gov.uk/ukpga/2003/44/section/98/notesPoliceSentencingLegislationArrestPrisonsExplanatory Notes to Criminal Justice Act 2003Home OfficeKing's Printer of Acts of Parliament2020-04-20 44 20th November 2003 353 Section 98 defines the sort of evidence whose admissibility is to be determined under the new statutory scheme. The definition covers evidence of, or of a disposition towards, misconduct. The term “misconduct” is further defined in section 112 as the commission of an offence or other reprehensible behaviour. This is intended to be a broad definition and to cover evidence that shows that a person has committed an offence, or has acted in a reprehensible way (or is disposed to do so) as well as evidence from which this might be inferred. 354 The definition is therefore intended to include evidence such as previous convictions, as well as evidence on charges being tried concurrently, and evidence relating to offences for which a person has been charged, where the charge is not prosecuted, or for which the person was subsequently acquitted. This reflects the state of the current law. On the latter point, in the case of Z ([2000] 2 AC 483), the House of Lords held that there was no special rule that required the exclusion of evidence that a person had been involved in earlier offences, even if they had been acquitted of those crimes, provided that that evidence was otherwise admissible. Thus, if there were a series of attacks and the defendant were acquitted of involvement in them, evidence showing or tending to show that he had committed those earlier attacks could be given in a later case if it were admissible to establish that he had committed the latest attack. The Act preserves the effect of this decision. 355 Evidence not related to criminal proceedings might include, for example, evidence that a person has a sexual interest in children or is racist. 356 The scheme does not affect the admissibility of evidence of the facts of the offence. This is excluded from the definition, as is evidence of misconduct in connection with the investigation or prosecution of the offence. This evidence is therefore not governed by the new statutory rules. 357 Thus, if the defendant were charged with burglary, the prosecution’s evidence on the facts of the offence – any witnesses to the crime, forensic evidence etc – would be admissible outside the terms of these provisions. So too would evidence of an assault that had been committed in the course of the burglary, as evidence to do with the facts of the offence. Evidence that the defendant had tried to intimidate prosecution witnesses would also be admissible outside this scheme as evidence of misconduct in connection with, as appropriate, the investigation or the prosecution of the offence, as would allegations by the defendant that evidence had been planted. However, evidence that the defendant had committed a burglary on another occasion or that a witness had previously lied on oath would not be evidence to do with the facts of the offence or its investigation or prosecution and would therefore be caught by the definition in section 98 and its admissibility would fall to be dealt with under the Act’s provisions. 358 The intention is that this Part of the Act will provide a new basis for the admissibility of previous convictions and other misconduct. Accordingly, section 99 abolishes the common law rules governing the admissibility of such evidence. (Statutory repeals are dealt with in Part 5 of Schedule 37.) This abolition does not extend to the rule that allows a person’s bad character to be proved by his reputation. This common law rule is preserved as a category of admissible hearsay in section 118(1). However the admissibility of a person’s bad character, in circumstances where it was being proved by reputation, would fall to be determined under this part of the Act.