Bullets are projectiles that are fired from firearms. They are typically made of lead and jacketed in harder materials like copper for protection. Bullet tips can be pointed, rounded, or flattened. Inside cartridges, bullets are propelled by primer, gunpowder, and wadding. Upon firing, the gunpowder ignites and rapidly expands gases that push the bullet out of the barrel. Firearm injuries are caused not just by the bullet but also burnt gunpowder and other material deposited in the wound. Wounds of entry and exit are often seen, and characteristics like abrasions, soot, and tattoos help identify them.
At the end of the session, you will be able to:
Define forensic ballistics and firearms
Understand different types of firearms and ammunition
Differentiate features of entry and exit wounds in firearms
Enlist Medico-legal aspects
At the end of the session, you will be able to:
Define forensic ballistics and firearms
Understand different types of firearms and ammunition
Differentiate features of entry and exit wounds in firearms
Enlist Medico-legal aspects
We saw the infamous 26/11 at Mumbai, India. We lost some brave-hearts. Hence, we look into the forensics behind firearm injuries. We shall also discuss the JFK assassination case in brief. I would recommend downloading the presentation and view it in power point 2010 or above to see all the effects flawlessly.
Explanation of ballistics, various fields of ballistics, Forensic Ballistics,Firearms and its components, Ammunition and its components, firing mechanism of firearm, Identification & individualization.
We saw the infamous 26/11 at Mumbai, India. We lost some brave-hearts. Hence, we look into the forensics behind firearm injuries. We shall also discuss the JFK assassination case in brief. I would recommend downloading the presentation and view it in power point 2010 or above to see all the effects flawlessly.
Explanation of ballistics, various fields of ballistics, Forensic Ballistics,Firearms and its components, Ammunition and its components, firing mechanism of firearm, Identification & individualization.
Learn more about ammunition, cartridge or bullet and ammo components. Here are the different names and parts like neck, shoulder, body, rim, bullet and primer.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
How to Split Bills in the Odoo 17 POS ModuleCeline George
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Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
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3. Any article being capable of projecting
with great force from a fire arm
weapon is known as projectile.
Pellets in shot guns.
Bullet in rifled fire arms.
3
4. A bullet is made of lead.
Since lead is a soft material and easily
deformable, the bullet is jacketed
either fully or partly with cupronickel,
copper.
4
5. Tip of the bullet is known as
the nose.
A rifle bullet is elongated with
a pointed nose.
The revolver and pistol bullets
are shorter with a rounded
nose.
5
6. Cartridge case with
percussion cap
containing the
primer at the base.
Propellant charge
Projectile
6
7. Bullet: means the
projectile of a rifled
firearm.
◦ a. Dum Dum bullets: are
jacketed bullets with its nose
cut off to expose the core.
◦ They mushroom up in to
pieces when they strike the
body; they are very
destructive and produce
extensive lacerated wounds.
7
8. Tandem bullets/ Piggy back
phenomenon: are bullets
ejected one after other, when
the first bullet, having been
struck in the barrel, fails to
leave the barrel, and is ejected
by the subsequent fired bullet.
When weapon is old or rusty
and faulty.
8
9. Duplex rounds: This
contains two projectiles
by design. They enter
the target at different
points.
9
10. ◦ Tumbling bullet: A
bullet that rotates
end –on-end during
its flight is known as
a tumbling bullet.
10
11. JACKETED CONICAL
BULLETS:
Jacketed either fully or
partially with copper,
cupronickel, or other
harder casing. Used in
Rifles.
HARDENED LEAD
BULLETS:
. Made of lead, no
covering. Used in
pistols and revolvers.
12. TRACER BULLETS:
These bullets have
Barium per oxide
and magnesium
enclosed in their
base.
These bullets emit
light as they pass,
usually used for
signaling purposes.
12
15. Cartridge case with
percussion cap
containing the
primer at the base.
Propellant charge
Projectile
Wad
15
16. Outer shell or covering of the cartridge.
Generally it is made of brass & shot gun
cartridge is made of cardboard or plastic with
a rimmed brass base.
16
17. The percussion cap at the base contains a
small amount of sensitive detonating
composition known as the primer.
The primer composition may contains,
◦ Potassium chlorate
◦ Antimony sulphide
◦ lead styphnate,
◦ Barium nitrate
17
18. It is so called because it propels the missile
forwards.
It is composed of
◦ black powder or
◦ smokeless powder.
It lies between the primer & projectile.
Its ignition results in rapid formation of
expanding hot gases under pressure.
18
20. Contains:
Charcoal 15%,
Sulphur 10%
Potassium Nitrate 75%.
When ignited, it produces a lot of
smoke and some of the powder
is partly burnt or not burnt at all.
20
21. Contain Nitrocellulose alone or with
Nitroglycerine. smokeless powder is burnt
100% .
It is more effective than black powder as it
burns more efficiently and produces much
less or no smoke.
Less blackening and tattooing are observed
around the injury.
21
23. Above the gun powder
there is a cushion wad.
Functions;
◦ Separates the projectile from
propellant.
◦ Seals the bore effectively.
◦ Prevents the gases from
escape.
◦ Allows optimum pressure to
be developed.
23
26. 1. Gun II. Cartridge Case
a. Pressing a trigger.
b. Detonation of primer c. Ignition of powder
by a firing pin. d. Burning of
powder
e. Production of a
large volume of
gases (within the
closed space of
cartridge.)
f. Increase in
pressure of gases
g. Forces the bullet/pallet out of
cartridge.
h. Through barrel of gun (out of muzzle)
27. a. Discharge of flame.
b. Hot gases.
c Unburned/semi-burnt/burnt powder particles.
d. Grease from barrel of gun.
e. Wad/Jacket
29. Abrasion collar or contact ring is present in
which the superficial skin layers are abraded.
It results from the bullet’s initial attempt at
perforating the skin.
It is also known as contusion collar
30. This is due to the wipe off the soft metal of
the bullet or dirt present on it, or grease
carried from the barrel and is deposited
round the entrance wound internal to the
abrasion collar.
The GREASE COLLAR may be absent when
the bullet has passed through clothing.
31. Gun powder consists of particles which are
embedded under the skin through the force
of their impact.
It is seen only when the weapon is near
enough for the powder grains to strike with
force.
32. When the range increases to the point that
the powder particles do not embed
themselves but still leave a visible mark, it is
called stippling.
33. Wound may cause blood and tissue fragments
to enter the muzzle for several centimeters.
This appears due to a momentary suction
effect after the pressure of gas blast
subsides, as a result of rapid relative cooling
in the barrel.
Pieces of skin, hair and adipose tissue have
been found inside the weapon.
Sometimes the blood and tissue may soil the
hand or arm of person firing the gun.
34. i. Central Hole
ii. Grease Collar -- Grease from barrel– Absent
iii. Collar of abrasion.
iv. Inverted margins
v. Pink coloration
CO + Blood = Carboxy Hemoglobin
35. vi. Charring Flame + Heat ( Tissue burnt completely)
vii. Burning Heat
viii. Blackening Smoke + Burnt powder
ix. Tattooing Unburned + Semi-burnt powder.
x. Singeing Hair shriveled (Flame )
36. Wound of Entry
Track
Wound of Exit
Wound of Entry (Typical):
a. A missile while entering the human body will
i. Hit the skin
ii. Stretch the skin
iii. Effect penetration of skin.
iv. Effect penetration into soft tissue.
v. Effect penetration into the bony tissue.
37. Rifled weapons may produce two wounds,
◦ one of entry and
◦ one of exit.
The power of penetration is generally
greater with rifled and pistol bullets than with
revolver bullets.