Popular Democratic Movement president McHenry Venaani has written an open letter to Tanzanian president, Samia Suluhu Hassan requesting the immediate release of opposition leader Freeman Mbowe from police custody. Venaani, writing in his capacity as chairperson of the Democrat Union of Africa, said that he would also like to pay a formal visit to Mbowe, who has been behind bars since July last year after he was arrested along with a number of other senior Chadema officials in a night-time police raid just hours before they were to hold a public forum to demand constitutional reforms in Tanzania.