He must pay £100 compensation after admitting possessing an offensive weapon, a knife, in Linden Road, Bognor Regis, on December 25, 2018.
The case was heard at Worthing Magistrates’ Court on Friday, January 25, 2019.
Magistrates said the offence was serious enough to warrant a jail sentence as Matthews was carrying a knife in public.
He was jailed for six weeks to run consecutively after admitting assaulting an emergency worker, a police constable, by beating in Linden Road, Bognor Regis, on December 25, 2018.