20 people arrested in Dongshan market in Qishi, Dongguan. As of March 20th, the whole town * * * inspected 226 saunas, 772 song and dance entertainment places, 66 foot baths, 89 beauty salons, 6 other entertainment service places, and rented houses, and investigated 7 administrative cases involving pornography. Three criminal cases involving pornography were handled and three people were detained, and the rectification action achieved initial results.