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I phoned 150, stressed the non-urgentness of it, apologised, and just said if you are passing could you have a word. They phoned me back for more info. A LOT of info including whether I am black or white, married or single, whether they were doing it maliciously etc! The police had a quiet word but actually it made no difference. The drum and bass was still going on at 3.45am. So I will write them a friendly letter and let them know how close proximity our houses are and that the windows are very old and walls thin!