A preliminary hearing began on March 11, 2013. The evidence presented is subject to a publication ban. Magnotta's defence team requested the media and the public be barred entirely from the hearing; this was declined the next day.[82] Jun Lin's father, Diran Lin, travelled from China to attend the hearing.[83] On March 13, one of Magnotta's lawyers resigned, due to a possible conflict of interest.[84] Expert witnesses testified, including a forensic pathologist, a forensic toxicologist, a forensic odontologist,[85] a bloodstain analyst,[86] data recovery specialists[87] and an Internet investigations officer.[88] The prosecution also displayed video evidence.[87] Both Magnotta and Lin physically collapsed at separate times during the proceedings.[89][86][88]