I stay in Niort overnight when travelling to the Atlantic Coast region of France and this town has similar problems. Niort is a beautiful French town that is classed as part of the French green Venice region. I must have stayed in this town on several occasions and on each time we have to pass a large group of homeless vagrants. This is usually around 8 pm and their drug of choice as well and truly kicked in, with them screaming and shouting at each other.
What I am getting at here, is this is not just an issue in Middlesbrough or any other major town or city in Britain, it is a worldwide issue. How to tackle it is the million dollar question.