What an awful situation, artistsrifles has my every sympathy. Last November some kids kept coming back to take out their frustrations on mine and my wifes car. I knew who it was, i called the Police. They asked me if i had close circuit TV evidence, i did not, they offered me councelling, i laughed.
Anyway, these kids (a family of 4 teenage boys) were moving away from the area, and were just saying goodbye in the only way they knew how. They have moved about 7 miles away. My gain is someone elses loss. They had troubled another neigbour recently. Apparently he caught one and nearly killed him. They did not trouble him again so i am told. I cant reccommend doing that as i think it very risky. Another friend did that and ended up in court - quite an amusing story, but i will save that for another day. Your best bet is to invest in a visible close circuit TV mounted high up on the outside of your house. It is your best solution to a crappy situation.
Good luck
Tim (2)