Where does car clamping and its penalty fines mostly take place in Birmingham?

UPDATE: Birmingham City Council receives £170,000 in payments for vehicle removals

Cars being clamped due to dubious reasons or wrongfully targeted seems to be a talked about issue. This investigation will hopefully find out the prices of the clamping fines, why they have been issued, what companies whether Council based or privated based companies, in what Birmingham areas they have been issued, Birmingham hot-spots for clamping and information of how to deal with these situations.