Prosecution Service Sentencing Manual for case law on sentencing of section 18 . Relevant cases are: AG's Ref No 14 of 2008 (Cook) [2009] 1 Cr App R (S) 62 AG's Ref No 44 of 2008 (Patterson) [2009] 1 Cr App R (S) 111 AG's Ref No 49 of 2008 (Blake) [2009] 1 Cr App R (S) 109 Stanley [2008] 2 Cr App R (S) 107 AG's Ref 6 of 2009 (DR) [2009] 2 Cr App R (S) 108 AG's Ref 14 of 2009 (Morgan) [2010] 1 Cr App R (S) 17 AG's Ref (No 95 of 2009) (Blight) [2010] EWCA Crim 353 Cross [2009] 1 Cr App R (S) 34 Smith [2009] 1 Cr App R (S) 37 Bowley [2009] 1 Cr App R (S) 79 R v Chatburn [2010] EWCA Crim 115 Haystead [2010] 1 Cr App R (S) 107 In Northern Ireland, an offence under section 18 is punishable with imprisonment for life or for any shorter term. Section 20 In England and Wales, a person guilty of an offence under section 20 is liable, on conviction on indictment, to imprisonment for a term not exceeding five years, or on summary conviction to imprisonment for a term not exceeding six months, or to a fine not exceeding the prescribed sum, or to both. Where a person is convicted on indictment of an offence under section 20, other than an offence for which the sentence falls to be imposed under section 227 or 228 of the Criminal Justice Act 2003, the court, if not precluded from sentencing an offender by its exercise of some other power, may impose a fine instead of or in addition to dealing with him in any other way in which the court has power to deal with him, subject however to any enactment requiring the offender to be dealt with in a particular way. An offence under section 20 is a specified offence for the purposes of chapter 5 of the Criminal Justice Act 2003 because it is a specified violent offence. It is not a serious offence for the purposes of that Chapter because it is not, apart from section 225, punishable in the case of a person aged 18 or over by imprisonment for life, or by imprisonment for a determinate period of ten years or more. This means that sections 227 and 228 of the Criminal Justice Act 2003 (which