乌鲁木齐市的刘先生咨询:我们小区的一家餐馆总是用高音喇叭播放很响的音乐,影响大家休息。为此,业主们多次和餐馆交涉,但他们还是不注意。我们想向环境管理部门投诉,但有人说餐厅噪声是社会生活噪声,应由公安机关处理。请问,我们应该向哪个部门投诉? Mr. Liu of Urumqi Consulting: A restaurant in our district always plays very loud music with a tweeter, affecting everyone to rest. To this end, the owners negotiate with the restaurant several times, but they still do not pay attention. We want to complain to the environmental management department, but some people say that restaurant noise is a noise of social life and should be handled by public security organs. Excuse me, which department should we complain about?