We should have a competition, the worst five places in the UK my five are, in descending order :-
Birkenhead North, Middlesborough, Southwark (London), Cheetham hill (Manchester) and Govanhill (Glasgow)
been to most places in uk and these stood out for me
Birkenhead north when I was there had armoured shops ( note armoured, I don't mean shutters), gangs running round streets and they had even stripped the tiles off their own houses and sold them
Middlesborough, especially areas like Grangetown are truly shocking, mad max does not come near
Southwark, had to think long and hard as there are many bad London areas but you do not feel safe there even during the day
Cheetham Hill, I was going to say Moss side the first place in uk to have permanently armed police, but Cheetham is the only place I have been, other than Baltimore, where a gun was fired in daylight on a street.
Govanhill, it's like a zombie server for real
note nowhere in Wales or Northern Ireland currently quite as bad, but only since the troubles died down