Question: who banned all public meetings and procession in amritsar
Answer: At 9 : 00 on the morning of 13 April , the traditional festival of Baisakhi , Colonel Reginald Dyer , the acting military commander for Amritsar and its environs , proceeded through the city with several city officials , announcing the implementation of a pass system to enter or leave Amritsar , a curfew beginning at 20 : 00 that night and a ban on all processions and public meetings of four or more persons .