Many in Japan's large and lively dance community centered on hip-hop, house and other styles are becoming increasingly upset at what appears to be a police crackdown on an essential part of their lives.

Since 2010, with more and more clubs being shut down on the grounds they don't conform with all the small print involved in their licenses, many are now thinking the authorities nationwide are trying to turn back the clock to some real or imagined era of strict societal control.

Among those disillusioned with this turn of events is Ryo Isobe, a freelance writer specializing in club music whose book titled "Odotte wa Ikenai Kuni, Nihon (Japan: the Country Where You Must Not Dance)" was published last month.