does anyone know a web site that will tell me my rights that will protect me and my home from gang kids.

the place we live use 2 b nice we built a house now mexican gang has moved n they have not messed with us yet but myfriends down the road they jumped on her husband n his yard and broke his arm. The cops came out and told him he should of just went n. THEY WAS N his yard and the cops did NOTHING. I want 2 know what TEXAS laws protect me and mine. if anyone knows a web site I can go 2 please let me know. Im scared if they come over here some1s going 2 jail and I don't want it 2 b us.PLEASEHELP THANKS