57. Alternative verdicts and guilty pleas
(1) If in proceedings on indictment for an offence under section 44 or 45 a person is not found guilty of that offence by reference to the specified offence, he may be found guilty of that offence by reference to an alternative offence.
(2) If in proceedings for an offence under section 46 a person is not found guilty of that offence by reference to any specified offence, he may be found guilty of that offence by reference to one or more alternative offences.
(3) If in proceedings for an offence under section 46 a person is found guilty of the offence by reference to one or more specified offences, he may also be found guilty of it by reference to one or more other alternative offences.
(4) For the purposes of this section, an offence is an alternative offence if -
(a) it is an offence of which, on a trial on indictment for the specified offence, an accused may be found guilty; or
(b) it is an indictable offence, or one to which section 40 of the Criminal Justice Act 1988 (c. 33) applies (power to include count for common assault etc. in indictment), and the condition in subsection (5) is satisfied.