Gunshot residue, forensic analysis and interpretation ppt 03SURYAKANT MISHRA
This presentation contains all about the forensic analysis of gunshot residue, basics of GSR formation, tracing methods, collection and examination methods.
Gunshot residue, forensic analysis and interpretation ppt 03SURYAKANT MISHRA
This presentation contains all about the forensic analysis of gunshot residue, basics of GSR formation, tracing methods, collection and examination methods.
Forensic Science - 03 Fibres and fabricsIan Anderson
A closer look at how forensic scientists investigate fibres and fabrics as part of a criminal investigation for Year 9 students at Saint Ignatius College Geelong.
Analysis of hair and fiber , differentiating it between human and animals. analysis in identification cases of male and female and different places of body origin. Examination in sexual assault cases and extraction of DNA from hair from DNA fingerprinting.
A digital imaging instrument manufactured by Foster + Freeman that employs combinations of light sources and filters to examine document evidence under various wavelengths of radiation ranging from ultraviolet to the infrared regions of the electromagnetic spectrum.
VSC is a preferred tool as it supports non destructive examination of documents. VSC uses multiple parameters like IR, UV, and White light providing accurate results.
VSC VIDEO SPECTRAL COMPARATAOR FORENSIC APPLICATIONS BY SHAILESH CHAUBEY STUDENT OF FORENSIC SCIENCE & CRIMINOLOGY FROM BUNDELKHAND UNIVERSITY JHANSI UTTAR PRADESH INDIA . THIS PPT SHOWS ABOUT THE FEATURES, APPLICATIONS , CASE LAWS & NEED OF VSC IN FORENSIC ASPECTS FOR DOCUMENT EXAMINATION & HANDWRITING . THIS PRESENTATION WILL HELP TO GET MORE INFORMATION ABOUT VSC BY VARIOUS SLIDES.
Analysis of illicit liquor including methyl & ethyl alcoholDr Raghu Khimani
This ppt gives you information of quantitative and qualitative analysis of illicit liquor including methyl and ethyl alcohol. There are various tests given for analysis of methanol, ethanol, copper, iron, furfural.
Forensic Science - 03 Fibres and fabricsIan Anderson
A closer look at how forensic scientists investigate fibres and fabrics as part of a criminal investigation for Year 9 students at Saint Ignatius College Geelong.
Analysis of hair and fiber , differentiating it between human and animals. analysis in identification cases of male and female and different places of body origin. Examination in sexual assault cases and extraction of DNA from hair from DNA fingerprinting.
A digital imaging instrument manufactured by Foster + Freeman that employs combinations of light sources and filters to examine document evidence under various wavelengths of radiation ranging from ultraviolet to the infrared regions of the electromagnetic spectrum.
VSC is a preferred tool as it supports non destructive examination of documents. VSC uses multiple parameters like IR, UV, and White light providing accurate results.
VSC VIDEO SPECTRAL COMPARATAOR FORENSIC APPLICATIONS BY SHAILESH CHAUBEY STUDENT OF FORENSIC SCIENCE & CRIMINOLOGY FROM BUNDELKHAND UNIVERSITY JHANSI UTTAR PRADESH INDIA . THIS PPT SHOWS ABOUT THE FEATURES, APPLICATIONS , CASE LAWS & NEED OF VSC IN FORENSIC ASPECTS FOR DOCUMENT EXAMINATION & HANDWRITING . THIS PRESENTATION WILL HELP TO GET MORE INFORMATION ABOUT VSC BY VARIOUS SLIDES.
Analysis of illicit liquor including methyl & ethyl alcoholDr Raghu Khimani
This ppt gives you information of quantitative and qualitative analysis of illicit liquor including methyl and ethyl alcohol. There are various tests given for analysis of methanol, ethanol, copper, iron, furfural.
By Vaishnavi Nikte ( B pharmacy )
slides includes all about Clinical Research Pharmacovigilance & Phyto Research. Useful for pharmacy student as well as Clinical research field people also includes pharmacognosy basics for herbal drug discovery.
It will be of no value to remove the chemical from the patient’s stomach if he has stopped breathing or his heart is fibrillating. So always asses the patient first, then what must be done and in what order.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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!
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
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.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
2. The word “Toxicology” is derived from the Greek word “Toxicon”
which was used as a poisonous substance in arrowheads.
Science embodying the knowledge, source, character, fatal effect,
lethal dose analysis of poisons and the remedial measures.
Poison is defined as the substance, which is capable of producing
injury or death when absorbed. Appropriate dosages can
differentiate poison and also the remedial measures
3. • All chemicals can produce injury or death under certain
conditions. Hence, a poison can be defined as a substance
that is capable of producing detrimental effects on a
living organism.
• The toxicologist is specially a trained expert to examine
the role of such substances and their adverse effects.
• Forensic toxicology emerged as the hybrid of analytical
Chemistry and toxic principle effects.
• Forensic toxicologists are also primarily concerned with
the medico - legal aspects of the harmful effects of
chemicals on human and animals
4. BIOLOGICAL: Viscera, blood, urine, saliva, stomach contents, intestinal
contents, gastric, lavage, vomit, brain matter, stool, fecal matter, bone, nails,
hair, skin.
NON BIOLOGICAL MATRICES: Water, remnants or traces of poison in small
container, food and food products, milk and milk products, fruits, vegetables,
tea, coffee, cooked materials, drinks, cereals, pulses, wines, etc.
VISCERA: Internal organs viz. liver, kidney, stomach, intestine, gall bladder,
uterus, heart, lungs, brain etc.
5. IN CASE OF DEATH IN CASE OF LIVING OTHER MATERIALS
Stomach with contents Blood Tablets
Small intestine with contents Urine Suspected bottles with liquids
Liver Stomach wash Powders
Spleen Other suspected items
Kidney
Brain
Blood
Bones
Hair
Nail
6. • Exhibits collected on the crime scene are packed, sealed and sent to the
laboratory for examination along with a mention of what information is requisite.
• Theses evidence are received by the lab and given a special number of
examinations according to chronology of receiving.
• Opening of parcels for examination, their examination and report writing after
examination was described and demonstrated.
• brief description of how records are maintained was also mentioned.
7. PARCEL CONTENTS
• Brief history of the case under investigation: a copy of the FIR
• Certificate by forwarding authority mentioning police station, under section, name of forwarding
officer
Description of the exhibits: Describing all the exhibits in the parcel in detail, how & when they are
collected & by whom, & the source of the Exhibits & with which seal the parcels are sealed.
• Letter describing the Queries & nature of examination required
• Certificate by the forwarding authority
• The sample seals with which the parcels & sub-parcels containing the exhibits are sealed,
• An additional MLC (medico legal report) by the doctor’s examination of the victim,
• Other documents like Road certificate & HQ forwarding letter.
8. Extraction (separation) of active constituent i.e. poisons in biological and non-biological
matrices.
Stripping or purification of active constituent thus separated.
Identification or Rapid Screening test through TLC and Chromatographic Techniques.
Quantitation, if required.
Interpretation/conclusion/Examination report.
9. It includes:
1. Solvent Extraction:
2. Distillation
3. Dialysis
4. Absorption
5. Chemical Digestion
6. Chromatography
10. Tests performed:
Extraction Procedure:
50-100 gms. of Tissue or Viscera in distillation flask
About 5 ml of H2SO4 or H3PO4 is added
steam distillation
distillate collected in AgNO3
11. Ammonium -Molybdate Test Procedure:
2 ml of extract taken
2 ml of ammonium- molybdate added to extract
A few drops of conc, HNO3 is added and warmed
“CANARY YELLOW “ color observed.
12. Ammonium – Molybdate Benezidine Test:
1 drop of acidic solution of extract is placed on filter paper
1 drop of ammonium -molybdate is added followed by 0.05% Benezidine
acetate in acetic acid
Paper is exposed to ammonia vapour
“BLUE STAIN” developes.
13. • Any substance or mixture of substances intended for preventing, destroying or controlling any pest,
including vectors of human or animal disease.
• Powerful inhibitors of ACETYLCHOLINESTERASES.
• Acetylcholine is produced at the myoneural junction, and acts as a chemical signal transmitter at
synapses.
• Common Mode of suicide in India.
ORGANOPHOSPHOROUS :
• DDVP ( Dichlorovos) ,Phosphamidon, Mevinphos, Methyl Parathion, Fenitrothion,
• Fenthion, Chlorpyriphos, Quinalphos, Diazinon, Dimethoate, Malathion, etc.
15. EXTRACTION FROM BLOOD:
10 ml blood + 10 ml of 10% Sodium Tungstate solution + 5ml of 1N
Sulphuric Acid
shake for 2 min.
filter the contents and wash residue with 0.1 N H2SO4
Extract the Filtrate with n- hexane
collect the hexane layer, pass through anhydrous sodium sulphate and evaporate to 1 ml.
Air dry the sample and leave overnight.
16. IDENTIFICATION OF PESTICIDES BY TLC:
ORGANOPHOSPHOROUS PESTICIDES:
MOBILE PHASE : Hexane : Acetone ( 4: 1 ), Benzene : Methanol (6:4)
STATIONARY PHASE: Silica Gel G
CONTROL USED: DDVP, Malathion, Prathion etc.
SPRAYING REAGENT: Palladium chloride.
COLOUR OF SPOT: “ yellow-red “ for DDVP , “Brown” for
Malathion and Parathion
17. ORGANOCHLORO PESTICIDES:
MOBILE PHASE: Hexane : Acetone (4:1)
STATIONARY PHASE: Silica Gel G
CONTROL USED: Endosulphan , Endrin , Quinone phosphate , Phosphomidon
SPRAYING REAGENT : ZnCl2 –Diphenylamine solution
COLOUR OF SPOT: “Bluish- Green”
CARBAMATE PESTICIDES:
MOBILE PHASE: Hexane : Acetone (4:1)
STATIONARY PHASE : Silica Gel G
CONTROL USED: Propoxur ( Baygon ) , Carbaryl , Carbofuran.
SPRAYING REAGENT: Fast Blue B
COLOUR OF SPOT: “Red/ Violet”
18. A drug can be defined as a “natural or synthetic substance that is used to produce physiological or psychological
effects in humans or other animals ”.
EXTRACTION PROCEDURE:
FROM VISCERA:
“ AMMONIUM SULFATE METHOD” :
visceral material + 10 ml of 5% caetic acid + Sodium Ammonium Sulphate in conical flask
kept on water bath
( deproteinisation )
cool and filtered
19. STEP 2:
Extract taken in separating funnel + 50 ml Diethyl Ether
gently shaken for 2 min.
allowed to stand
Now 2 layers get separated
aqueous layer taken in another flask
Organic layer is filtered with sodium sulphate and taken for test
20. Step3.
Aqueous layer is made alkaline By adding ammonia solution + Same amount of Chloroform &
Ether (1:1) is taken in separating Funnel
↓(gently shaken for 20 min.&
↓ allowed to stand
Now both layers get separated
↓
Aqeous layer is decant off and Organic layer is filtered through anhydrous Sodium sulphate
organic layer used for basic drug
21. Step4.
Now both acidic and basic drugs are used are allowed to perform TLC along with
standards.
Acidic Drugs:
Standard for acidic
drugs
Solvent system Spray Reagent
I
dentification colour
Phenobarbitone Chloroform :Acetone (9:1) FPN Purple violet colour
Phenargon Chloroform :Acetone (9:1) Zwiker Violet colour
22. Basic Drugs:
Standard for basic drugs Solvent system Spray Reagent Identification colour
Alprazolam Chloroform:Methanol(9:1) Dragendorff‟s reagent followed
by iodoplatinate
Pink color
Lorazepam Chloroform:Methanol(9:1) Dragendorff‟s reagent followed
by iodoplatinate
Pink color
Diazepam Chloroform:Methanol(9:1) Dragendorff‟s reagent followed
by iodoplatinate
Pink color
Nitrazepam Chloroform:Methanol(9:1) Dragendorff‟s reagent followed
by iodoplatinate
Pink color
Phenargan Chloroform:Methanol(9:1) Dragendorff‟s reagent followed
by iodoplatinate
Pink color
23. EXTRACTION FROM BLOOD :
Blood sample + sodium tungstate + sulphuric acid
↓(for deproteinisation)
Filter & use filtrate for solvent extraction
Now apply step 2, 3 & 4 for drug analysis.
From Gastric lavage & urine, apply step 2, 3& 4 directly for drug analysis. Before applying step 2 made
it acidic
24. Isolation:
By acid-distillation:
50-100 gms. of viscera (properly minced) or Blood brought to the consistency of a thin gruel by
adding 3-5 times of distilled water.
aciDified with tartaric or sulphuric acid and submitted to steam distillation.
(The condenser and the receiving flask should be well cooled with ice especially during the hot
season, the outlet of the condenser being dipped in a little water.)
A few pieces of porcelain dish is added in flask to prevent bumping.
Distillate is collected in conical flask for chemical testing.
25. “DICHROMATE TEST” :
1ml of distillate + 1ml of potassium dichromate + 1ml of sulphuric acid
(drop wise through wall)
↓
BLUE/GREEN ring will formed
26. “IODOFORM TEST”:
1ml of distillate + few drops of 10% NaOH+ iodine solution
↓warm on water bath
Solution color changes to brown
↓add few drops of 10% NaOH + iodine sol.
↓& warm
Solution color changes from brown to yellow
↓cooled & observed under microscope
Characteristic Hexagonal crystals are formed
