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			== Post-mortem interval ==
			<gallery>
			File:Postmortem_interval_changes_(stages_of_death).png\|Stages of death changes
			File:Michele_Taylor_-_Forensics_Final_Project_(1).jpg\|Post-mortem interval
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'''Post-mortem interval''' (PMI) is the time that has elapsed since a person has died. If the time in question is not known, a number of medical/scientific techniques are used to determine it. This also can refer to the stage of decomposition of the body.

==Definition==
The '''[[Post-mortem interval]]''' is the time that has elapsed since a person has died. If the time in question is not known, a number of medical/scientific techniques are used to determine it. This also can refer to the stage of decomposition of the body.

==Estimation==
Estimation of the post-mortem interval is a major task in [[forensic pathology]]. This is important in cases of suspicious deaths, as information about the post-mortem interval can provide critical evidence to help determine if a crime has been committed.

==Methods of Estimation==
There are several methods used to estimate the post-mortem interval:

* '''[[Rigor mortis]]''': This is the stiffening of the body after death due to a biochemical process in the muscles. It can begin as soon as 4 hours after death and last up to 72 hours.

* '''[[Livor mortis]]''': This is the settling of the blood in the lower (dependent) portion of the body, causing a purplish red discoloration of the skin. It can begin as soon as 20 minutes after death and last up to 16 hours.

* '''[[Algor mortis]]''': This is the reduction in body temperature following death. This is a complex process affected by many variables.

* '''[[Decomposition]]''': This is the breakdown of the body tissues after death. It can be influenced by many factors including temperature, humidity, and the presence of insects.

* '''[[Forensic entomology]]''': This is the study of insects for medico-legal purposes. It can be used to estimate the post-mortem interval by studying the life cycle of insects that are present on the body.

==See Also==
* [[Forensic pathology]]
* [[Rigor mortis]]
* [[Livor mortis]]
* [[Algor mortis]]
* [[Decomposition]]
* [[Forensic entomology]]

[[Category:Forensic pathology]]
[[Category:Death]]
[[Category:Medical terminology]]

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Post-mortem interval - Revision history

Prab: CSV import

Prab: CSV import