A thought about section 41, Criminal Justice & Youth Evidence Act 1999.
Section 41 of the Act, which we all know and love, is a constant source of headaches, prosecuting or defending (OK, & who really, truthfully, understands R v A?).
The issue, in a sexual offences trial is, as is (more often than not the case in this writer's experience), not an issue of consent (s.41(3)(a)), and, of course, just as where it is an issue of consent, "no evidence may be adduced, and ... no question may be asked in cross examination ... about any sexual behaviour of the complainant" without leave of the Court: s. 41(1) [Archbold 8-238]. This has technically effectively long been the law, albeit perhaps more honoured in the breach then the observance: cf. the chequered history, in terms of application, of the Sexual Offences (Amendment) Act 1976.