Simoman is right, we had this at west alloment, standard letter sent out, when i rang the bloke he sais dont worry about it, its just the first point of contact, if they recieve another complaint, they will start to look at setting up recording equiptment in the womans house! They also told me that they would've advised the other party to keep a diary of when the noise occurs, so its prob an idea to do one of your own, they'll also ask other neighbours too if they investigate it, to see if anyone else has a problem with it!!! like i said have bruce for the night in your kitchen, the cats wont