you clearly don't realise just how strict the law (and public opinion) is in the UK. The STARTING point for sentencing is 5 years inside without the option. If you can show that you have no intention of using it (so why were you carrying it?) and its non-lethal and you didn't wave it around they may decide on a shorter sentence. Its 10 years if its disguised as something else. Many of these sentences are mandatory.
If he's lucky he'll get something like the guy in Oxford
https://uk.news.yahoo.com/man-senten...068.htmlMoussa Adoum, 38, of Whitehouse Road, South Oxford, was charged with possessing the weapon which discharges an electrical charge. He pleaded guilty at Oxfordshire Magistrates Court last month for the incident which took place in Oxford on May 14, 2021. Adoum received a 20-week prison sentence suspended for 18 months because the offence was so serious.
or: elsewhere-
While two response officers approached the 44-year-old suspect shortly after 7.10pm on July 15, he was seen to discard something on the floor which turned out to be a taser type device. Armstrong pleaded guilty to the offence at Nottingham Magistrates' Court on November 4 last year and was given an eight months prison sentence suspended for 18 months at Nottingham Crown Court on February 4, 2021.
I think the French start with a year for carrying a TASER.