If you're in for a little Breaking and Entering, sneak over one night, or when no one is home, and do a little sabotage on the equipment. Wire cutters on the strings of the guitars, or maybe a carpet knife... if you want to get really daring, replace a fuse for the room where they practice for one that's rated much lower, say a 10 amp in place of a 30 ... and everytime the turn on their amps, the breaker will trip.
DON"T DO THAT tell them you would want them to lower the noise level. It's that easy, man.
Research places in your area that scouts for new talent, or look up recording studios, etc. Call them up posing as some famous DJ or talent scout, tell them you are really impressed with their music. Tell them how cutting edge they are, how they could be the next Nirvana or Rage Against The Machine, whatever sound they try to imitate, and get them all worked up.Make an appointment with them for one of those places mentioned above, they'll have their hopes up sky high, show up there, no appointment, get turned away, and when they go home crying in their guitars maybe they'll electrocute themselves Heh heh heh. Of course this takes some research work on your part, like getting names and addresses of people in the music biz, but you should be able to do that relatively easily. Good luck!
Its real simple. Since your cops won't help get yourself a video tape recorder. You can always buy one, use it a few days, then return it (check the store return policy).
Check your city's noise code; usually it's lest restrictive until 11:00 pm. Make sure the time/date is correctly set and when the music starts roll the tape.
Next step is the local PA. You have the evidance so he should do his job. Actually before that you may schedule a meeting with the chief of police and if they still refuse to take action you mention that to the PA too.
If all fails, go to the court and file your own complaint.
Reply 121 is on to it. Go a step further, and rent a noise level meter.
Have that framed in the video as well.
Since the neighborhood isn't happy, get a petition going. Copy 1 to the noisemakers, one for you, & the original to the police chief.
Do you have City Council meetings that you could bring this to?
just g over and watch them tell them they suck and then theyll think ur a bitch and practice at someone elses house if u dont mind loosing a couple of 18 year old freinds then go 4 it