1) Samples of insects from different stages of life and different areas of the body and surrounding environment should be collected to determine time of colonization and death.
2) Specimens such as eggs, maggots, pupae, beetles, and soil samples are fragile and should be transported in an upright cardboard box as soon as possible to the entomologist.
3) The pattern of insect colonization can provide clues about wounds, time since death, and whether the body was moved after the killing took place.
Forensic Entomology is the study of insects found at the crime scene.
For complete explanation of videos, click on the link- https://youtu.be/RXs9BKFkUXk.
Forensic Entomology is the use of the insects, and their arthropod relatives that inhabit decomposing remains, to aid legal investigations.Forensic entomology is commonly used to estimate the time of death when the circumstances surrounding the crime are unknown.Insects arrive at a decomposing body in a particular order and then complete their life cycle based on the surrounding temperature. By collecting and studying the types of insects found on a body, a forensic entomologist can predict the time of death
This presentation is about the Gun Shot Residue which is a prime evidence in the investigation of crimes involving a use of firearm. It will inform the viewer about the composition, relevance and various chemical and instrumental methods employed for its analysis.
Forensic Entomology is that special associated distinctive discipline of Forensic Science that deals with the assorted aspects of an insect’s or a maggot’s life cycle so as to assess the time since death.
This presentation discusses various aspects of wildlife crime management and conservation, some aspects related to genetics and new discoveries and techniques are also added.
Forensic Entomology is the study of insects found at the crime scene.
For complete explanation of videos, click on the link- https://youtu.be/RXs9BKFkUXk.
Forensic Entomology is the use of the insects, and their arthropod relatives that inhabit decomposing remains, to aid legal investigations.Forensic entomology is commonly used to estimate the time of death when the circumstances surrounding the crime are unknown.Insects arrive at a decomposing body in a particular order and then complete their life cycle based on the surrounding temperature. By collecting and studying the types of insects found on a body, a forensic entomologist can predict the time of death
This presentation is about the Gun Shot Residue which is a prime evidence in the investigation of crimes involving a use of firearm. It will inform the viewer about the composition, relevance and various chemical and instrumental methods employed for its analysis.
Forensic Entomology is that special associated distinctive discipline of Forensic Science that deals with the assorted aspects of an insect’s or a maggot’s life cycle so as to assess the time since death.
This presentation discusses various aspects of wildlife crime management and conservation, some aspects related to genetics and new discoveries and techniques are also added.
This presentation will help you in understanding what is a pollen grain, what is forensic palynology, Structure of Pollen grain, It's biology, Dispersal and production, How to identify a pollen grain to species level based on Morphological characteristics and along with imparting detailed knowledge it will also help you to understand it's forensic significance.
The study of bugs relating to crime scene investigation. How the professionals work together with insects to determine time of death and any other important clues needed to solve a murder investigation. I took this class my freshman year of college.
“Mobile Forensic Van” (MFV) (Big/Small) is being launched by Gujarat
Forensic Sciences University (GFSU) and Helik Advisory Ltd which helps
in reaching the crime scene at the earliest to assist the Investigating
Officers (IOs) in identifying and collecting relevant forensic evidence
from crime scene, victims & from suspects which are the primary
sources of forensic evidence. The Mobile Forensic Team assists the
Investigating Officer in linking the crime with the perpetrator through
the forensic evidence, collected from the crime scene, victims and
suspects.
This presentation will help you in understanding what is a pollen grain, what is forensic palynology, Structure of Pollen grain, It's biology, Dispersal and production, How to identify a pollen grain to species level based on Morphological characteristics and along with imparting detailed knowledge it will also help you to understand it's forensic significance.
The study of bugs relating to crime scene investigation. How the professionals work together with insects to determine time of death and any other important clues needed to solve a murder investigation. I took this class my freshman year of college.
“Mobile Forensic Van” (MFV) (Big/Small) is being launched by Gujarat
Forensic Sciences University (GFSU) and Helik Advisory Ltd which helps
in reaching the crime scene at the earliest to assist the Investigating
Officers (IOs) in identifying and collecting relevant forensic evidence
from crime scene, victims & from suspects which are the primary
sources of forensic evidence. The Mobile Forensic Team assists the
Investigating Officer in linking the crime with the perpetrator through
the forensic evidence, collected from the crime scene, victims and
suspects.
Here I would like to introduce the house fly term paper presentation in sequel to my old term papers. I hope it will enhance your understanding on the urban pest House fly
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Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
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Antifertility, Toxicity studies as per OECD guidelines
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This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
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Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
2. COLLECTING, PRESERVING AND
PACKAGING SPECIMENS
COLLECTION
Samples of insects of all stages should be collected from different areas of the body, from the clothing and from the soil/carpet etc.
Insects will often congregate in wounds and in and around natural orifices.
The two main insect groups on bodies are flies (Diptera) and beetles (Coleoptera).
Both types of insect look very different at different stages of their lives.
Flies can be found as:-
- eggs (in egg masses usually)
- larvae or maggots (in a range of sizes from 1-2 mm to 17 mm)
- pupae and/or empty pupal cases
- adults
3. • EGGS - are very tiny, but are usually laid in
clumps or masses, and are usually found in a
wound or natural orifice, but may be found on
clothing etc. They can be collected with a paint
brush dipped in water or with forceps. Half
should be preserved in 75% alcohol or 50%
isopropyl alcohol. The rest should be placed in a
vial with a little damp tissue paper to prevent
dehydration. If it will be more than a few hours
before the entomologist receives them, they
should also be given a small piece of tissue.
• Eggs are only of value when no maggots or
later insect stages are present. If maggots
are already present, don’t worry about the
eggs.
If no maggots are present, and the only insect
evidence is eggs, then the eggs are very
important and the time they hatch will be vital.
Therefore, observe the live eggs every few
hours and please note time when they first start
hatching and the approximate percentage
(e.g. 1015h 10% hatch, 1220 h 50% hatch, 1550
h 100% hatch).
4. MAGGOTS - collect a range of sizes. Maggots will be found crawling on or
near the remains and may be in maggot masses. The masses generate a
lot of heat, which speeds up development. Therefore, please note:-
the site of maggot masses
the temperature of each mass (thermometers can be
acquired cheaply at drugstores) or if no thermometer available, please
estimate size of mass.
label which maggots come from a particular mass.
Large maggots are usually older so are most important, but smaller maggots may
belong to a different species so both large and smaller maggots should be collected,
with the emphasis on larger maggots.
Collect samples of maggots from different areas of the body and the surrounding
area and keep them separate.
5. • PUPAE and EMPTY PUPAL CASES - these are extremely
important and are easy to miss. They are often found in clothing,
hair or soil near the body. Pupae like dry, secure areas away
from the wet food source in which to pupate so pockets, seams
and cuffs are likely hiding places. If the remains are found
indoors, they may have traveled some distance and be under
clothing, rugs, boxes etc. They range from 2-20 mm, and are
oval, like a football. They are dark brown when completely
tanned. An empty pupal case is very similar but is open at one
end, where the adult fly has emerged. They need some air, so
secure a paper towel over vial as for eggs, as although the
pupae are immobile, if they emerge during transit, an adult can
get out of anything! A piece of tissue in the vial will help to avoid
breakage as they are quite vulnerable. This can be very slightly
moistened with water, but be careful not to drown them. The
6. • ADULT FLIES - are less important. They are only of
use in indicating which species of insect are likely to
develop from the corpse, as you cannot determine
whether an adult has developed on the corpse, or
has just arrived from somewhere else to oviposit,
unless it emerged only an hour or so earlier. If an
adult has crumpled wings, it may have just
emerged, so still important as it can be linked to the
body. It should be collected, labeled as such, and
kept separate. Adults can be collected by net or by
using an inverted vial. They can be left in the vial
without air or food, as I will kill them as soon as I
receive them. The presence of empty pupal cases,
however, indicates that an insect has developed on
the corpse and reached adulthood.
7. BEETLES - can be found as adults, larvae or grubs, pupae and also as cast skins. All
stages are equally important. They move fast and are often found under the body, and
in and under clothing. They can be placed in vials with some air. They are cannibals so
should not be placed in the same vial!! It is often simplest to put the beetles directly
into alcohol.
OTHER INSECTS - other insects will be present, such as cheese skippers. If you are
not sure whether it’s an insect, collect it anyway and place in a vial.
OTHER SAMPLES - Soil and leaf litter samples will also be useful. About half a
coffee can size of soil from under or very near the body is useful. If the soil below the
body is extremely wet, it is better to collect the soil from near the remains. Half fill the
can, leaving room for some air.
8. `
HANDLING - MOST SPECIMENS ARE
FAIRLY FRAGILE AND ARE PROBABLY
BEST PICKED UP BE COURIERED OR
HAND DELIVERED TO MAINTAIN
CONTINUITY. THEY SHOULD BE
PACKAGED IN A CARDBOARD BOX AS
THIS HAS LOTS OF AIR. EACH VIAL CAN
BE TAPED SO THAT IT REMAINS
UPRIGHT. THE WHOLE BOX MUST
REMAIN UPRIGHT.
PACKAGING - THE INSECTS SHOULD
BE TAKEN TO THE ENTOMOLOGIST AS
SOON AS POSSIBLE. THEY SHOULD BE
PACKAGED IN A CARDBOARD BOX AS
THIS HAS LOTS OF AIR. EACH VIAL
CAN BE TAPED SO THAT IT REMAINS
UPRIGHT. THE WHOLE BOX MUST
REMAIN UPRIGHT.
HANDLING &
PACKAGING
9. OTHER USES FOR INSECTS IN FORENSIC
SCIENCE
The body may have been moved after death, from the scene of the killing to a hiding place. Some of
the insects on the body may be native to the first habitat and not the second. This will show that not only
was the body moved, but it will also give an indication of the type of area where the murder actually took
place.
The body may have been disturbed after death, by the killer returning to the scene of the crime. This
may disturb the insect's cycle, and the entomologist may be able to determine not only the date of death,
but also the date of the return of the killer.
The presence and position of wounds, decomposition may obscure wounds. Insects colonize
remains in a specific pattern, usually laying eggs first in the facial orifices, unless there are wounds, in
which case they will colonize these first, then proceed down the body. If the maggot activity is centred
away from the natural orifices, then it is likely that this is the site of a wound. For example, maggot activity
on the palm of the hands indicates the probable presence of defense wounds.