Revenue Divisional Officer and Sub-Divisional Magistrate will inquire into the circumstances that led to death of remand prisoner Rachuri Venkateswarlu, son of Ankama Rao, a resident of Mangalagiri in Guntur district, in the city on March 26, 2010. The magisterial inquiry would be conducted at sub-collector's office here on July 12 at 11 a.m.