Age Estimation of a Dried Bloodstain Using Different Techniques – A Review Article
Journal Title:Academic Journal of Forensic Science
Bloodstains can be a crucial evidence in reconstructing the events that would have occurred during the crime. This information always strengthens and verifies the statement of witness and also narrow down the number of suspects. Currently there are many techniques available to establish the age of the bloodstains. However, there is no single reliable method which can be used in the field of forensic science to determine the exact time elapsed since the crime was committed. This review paper summarizes also the important techniques that have been used by many scientists for the determination of age of a blood stains at different conditions. By analyzing all the techniques one can select the best suited technique for his analyses, as different techniques have different accuracy rate, in addition to this some are destructive and some are nondestructive techniques. Therefore on comparing all these techniques one can able to find the best method according to the various environmental conditions and thus contributing the important role in investigation and for the court of law. Key Words: Age estimation, Blood stains, skeletonized stains, Hemoglobin, HPLC, Electron Paramagnetic Resonance Spectroscopy, Reflectance Spectroscopy, Atomic Force Microscopy, Hyper Spectral Image Analysis, Electron Spin Resonance Spectroscopy, Oxygen electrode.