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Change in temperature after death, Most useful indicator of the time of death during first 24 hours

Algor Mortis

Settling of blood in the body gives off a bluish-purple color

Livor Mortis

stiffening of the muscles after death

Rigor Mortis

Tissue breakdown the body's own internal chemicals and enzymes


The breakdown of tissues by bacteria. These processes release gases that are the chief source of the characteristic odor of dead bodies


Dehydration or desiccation of tissues


using degree day models and life history information

Post Mortem Interval

A scientist who uses insects to help solve crime

Forensic Entomologist

The cadaver appears fresh externally but is decomposing internally due to the activities of bacteria, protozoa and nematodes present in the body before death

Intial Decay

The cadaver swollen by gas produces internally, accompanied by odor of decaying flesh

Putrefaction Decay

Flesh of creamy consistence with exposed parts black. Body collapse as gases escapes. Odor of decay very strong

Black Putrefaction

Cadaver drying out, some flesh remains at first and cheesy odor develops, neutral surface moldy from fermentation

Butyric Fermentation

Cadaver almost dry, slow rate of decay

Dry Decay

flesh flies Adults lay larvae on decaying flesh Some of the first insect to reach a corpse


solider flies Larvae feed on human excrement and remains Are found late in decomposition process


humpback flies Larvae feed on decaying bodies Some species can burrow to a depth of 50cm over four days Important in buried bodies


carrion beetles Buries small carcasses Adults feed on maggots and carrion


rove beetles Arrive a few hours after a death Are active throughout decomposition process


carpet beetles Larvae and adults feed on dry skin and hairs


hister beetles Found in bloated, decay, and early drying stages Both larvae and adults feed on maggots and puparia


blow flies Different species have different habitats - light vs. dark


the disease process or injury responsible for initaiting the train of events which produces death

Cause of death

the physiological and biochemical derangement produced by the above cause

Mechanism of death

the fashion in which the cause of death came into being

Manner of death

Appointed by local or state offical; serves continously; medical degree

Medical Examiner

elected by political offical, 2-4 years in office, no medical training


head, thorax, abdomen, six legs, and wings

Parts of the adult fly

anterior posterior slits where larva breathe through


flesh flies (sacrophadigdae)

First Insect to Arrive

temperature, access by inescts, burial, burial depth, access of animals, humdity, dryness, rainfall, body size, clothing, surface the body rest on, and trauma

Influences rate of decomposition

1.5 degree Celsius per hour

Rate of temperature decrease in 24hr



Scene: collect the maximum of info with teh mini disturbance History: collected Medico-legal autopsy

Death Investigation

social, medical-legal, and psychiatric

History Taken


Animal used in research

Blowf Fly Screw Worm Fly


Hairy Maggot Fly House Fly


Rove's Beetle Carrion Beetles

Active Decay

Checkered Beetles Cheese Fly

Advanced Decay

Pinic Beetle Dermestid Beetle

Dried Remarks

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