the customs there have insane powers to deny and fuck over pretty much anyone without oversight or culpability
if your name looks even slightly middle eastern or have a passport from the wrong country then you will randomly get denied entry if the agent feels that way that day
he also apparently has a history of crime, so…
https://www.coventrytelegraph.net/news/coventry-news/nuneaton-serial-burglar-jailed-four-3033221