eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2015-10-25 8 October Spl Edition 05 08 10.13005/bpj/643 4230 article L. S Makesh Raj 1 L. S Makesh Raj 1 V Jai Santhosh Manikandan 1 N. Aravindha Babu 2 K. M. K. Masthan 2 Tagore Dental College and Hospital, Rathinamangalam, Chennai Sree Balaji Dental College and Hospital, Bharath University , Chennai It is not easy for criminals to escape the long arm of the law.  Usually a suspect leaves a clue in a crime scene. From a dentist perspective mostly it will be a bite marks. Bite mark is a pattern made by teeth on a substrate. By comparing the dental status and DNA analysis it is possible now to identify a criminal. Scientific approach always requires a proper observation, recording and analysing when inspecting a clue. When analysing a bite marks it is necessary to follow the same scientific approach.It becomes a need for a dentist to know the normal bite marks and its variation. Present article throws a light on these aspects and adds little bit on way of presenting it. https://biomedpharmajournal.org/vol8octoberspledition/bite-marks-normal-or-abnormal/ Bite marks variations scientific approach