This is one of the earliest judgments from Justice Shri B Siva Shankar Rao, where in he mentioned about Rule 37 of the Criminal Rule of Practice and Circular Order, 1990
Gadu Narayanarao and Anr Vs State Of A.P. and Anr on 3 June, 2015 crlp_3823_2015The bulk of the Criminal Rules of Practice, 1990 is available here.