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我国有30个省级公安厅(局),200多个市级公安局;全国有160万警察,按人口平均是每万人有12名警察,大约是西方发达国家的三分之一。现在部署不到300信道的800MHz集群通信网,主要是Smart Net、SmartZone和TETRA;约160信道的450MHz常规通信网;约2100信道的150MHz常规通信网;约4500信
There are 30 provincial public security agencies (Bureaus) and more than 200 municipal-level public security bureaus in our country. There are 1.6 million policemen in the country. According to the average population, there are 12 police officers per 10,000 people, about one-third of those in western developed countries. The 800MHz trunking communications network with less than 300 channels is now deployed, primarily Smart Net, SmartZone and TETRA; 450MHz regular communications network of approximately 160 channels; 150MHz conventional communications network of approximately 2100 channels;