Australian police have opened an investigation into the death of a Brazilian student.<br/> <br />Local media reported 21-year-old Roberto Laudisio was chased by police and tasered in Sydney, after he allegedly stole a packet of biscuits from a convenience store.<br/> <br />Australian police have defended their use of stun guns, but Brazilian diplomats are demanding an explanation.<br/> <br />A law enforcement official said that the use of Tasers was well-regulated within the New South Wales police force.<br/> <br />The student's family was on its way from Sao Paolo to Sydney.<br/> <br />Travis Brecher, Reuters
