Locard's exchange principle
Read, Think, Write:罗卡定律(Locard's exchange principle) 法证之父罗卡.
罗卡定律(英文:Locard exchange principle, Locard's theory),也称罗卡交换定律,是法国法医学家、犯罪学家埃德蒙·罗卡(Edmond Locard)创建的,其理论在于“凡两个物体接触,必会产生转移现象”(with contact between two items, there will always be an exchange)。其用于犯罪现场调查中,行为人(犯罪嫌疑者)必然会带走一些东西,亦会留下一些东西。即现场必会留下微迹证