Background: For investigation of crime, it is very important to determine ‘time since death’ i.e. the interval between death and the time of postmortem examination also called as ‘postmortem interval. This is very important in criminal cases as it shows the track to the investigators to reach the suspected person and to obligate the innocent ones.
Methods: The present study was conducted in Forensic Medicine Department on cases died in Dr. S.N. Medical College & associated Group of Hospitals, Jodhpur in association with Department of Biochemistry.
Results: The linear correlation of the vitreous sodium (Na+) ion concentration was found statistically insignificant (r=0.045) therefore the coefficient of correlation could not be derived.
Conclusion: We have observed linear rise of potassium (K+) ion concentration in the vitreous humour. The linear relationship of the increase in vitreous potassium (K+) ion concentration with increasing postmortem interval is both arithmatic as well as logarithmatic (statistically significant).
Keywords: Na, K, Postmortem.
ESTIMATION OF TIME SINCE DEATH FROM THE CHANGES IN VITREOUS HUMOUR SODIUM (Na+) AND POTASSIUM (K+) LEVEL
