This Practice Note explains the available statutory defences to the three criminal offences of insider dealing contained in the Criminal Justice Act 1993 (CJA 1993). It explains the scope of the general offences to the dealing offence, the encouraging offence and the disclosing offence, as well as the special defences available to the recipients of market information including market makers and those involved in price stabilisation. This Practice Note should be read in conjunction with Practice Note: Insider dealing—the criminal offence.