<prompt> Locard;s Prinicple is concerned with:Theory of exchangeCriminal responsibilityCalculating age of fetusFirearm wounds of skull  <response>: Locard;s Principle is considered with Theory of exchange. Locard;s Exchange Principle Locard;s exchange principle states that when any two objects come into contact, there is always transfer of material from each object on to the other. This principle is often used as a sure proof of crime. Option A PrincipleRule concerned with Theory of exchange Locard;s Exchange Principle Option B PrincipleRule concerned with criminal; responsibility for insane Mc. Naughten rule Durham;s rule Curren;s rule Brawer rule Option C PrincipleRule concerned with calculating the age of fetus Rule of Hasse Option D PrincipleRule concerned with firearm wounds of skull Puppe;s Rule Ref: APC Essentials of Forensic Medicine and Toxicology by Anil Aggarwal 