Factors Affecting The Intensity Of Poisoning via Forensic’s blog

By @forensicfield

Introduction

The resultant of poisoning depends on many factors.

There are number of reasons which can affect intensity of poisoning are further explained, such as;

  • Dose.
  • Time of intake
  • Way of taking
  • Environmental factors, etc.

Dose

Amount of the poison is determine the affect of it on the body. Smaller the dose, lighter the effect and larger the dose, severe the effect.

Resistance

After doing continuous use of some drugs, such as opiates, tobacco, alcohol, etc. person develop a resistance towards some drugs.

Incompatible Combination of Drugs

Ingestion of some incompatible combination of Medicines may be fatal. Such As; Prozac and Tramadol, Thyroid medication and proton pump inhibitors, Nonsteroidal anti-inflammatory drugs and antihypertensive, etc.

Hypersensitivity

Some of persons show abnormal response (idiosyncrasy) to a drug like morphine, quinine, aspirin etc. due to inherent personal hypersensitivity.

Allergy

Some persons are allergic (acquired hypersensitivity) towards certain drugs like penicillin, sulpha, etc.

Incompatible Combinations

Ingestion of certain medications like anti – ulcerous gels with aspirin may lead to fatal effects.

Tolerance

People develop a marked tolerance in the case of opium, alcohol, strychnine, tobacco, arsenic and some other narcotic drugs by repeated and continued use.

Synergism

Some poisonous drugs can be toxic when taken together may cause lethal effect. Such as; Alcohol and Benzodiazepines, Heroine and Cocaine, Benzodiazepines and Opioids, Alcohol and Opioids

Slow Poisons

The continuous small amount of poison ingestion like arsenic, strychnine, lead, etc. accumulate in body and may cause death.

Conditions of The Body

  • Conditions of the body, i.e. age, health, etc. also affect the action of the poison.
  • Generally old persons, weaker persons and children severly affected by low dose of poison then young and healthy person.

Cumulative Action

The repeated small doses of cumulative poisons like arsenic, lead, mercury, strychnine, digitalis etc. may cause death or chronic poisoning by cumulative action.

Shock

Some times, a large dose of a poison acts differently from a small dose, for example; a large dose of arsenic may cause death by shock while a small dose results in diarrhoea.

Forms of Poison

  • Gases/Vapours Poisons
  • Liquid Poisons
  • Powder Poisons
  • Chemical Combination
  • Mechanical Combination

Gases / Vapours Poisons

These types of poison absorbed immediately and act quickly.

Liquid Poisons

These act better than solids.

Powder Poisons

Fine powdered poison act fast than coarse powdered poison.

Chemical Combination

Some substances in combination act like lethal, such as; acids and alkali’s, strychnine and tannic acid, etc.

Mechanical Combination

The action of a poison is altered when combined mechanically with inert substances, such as; when alkaloid when taken with charcoal, it does not act.

Methods Of Administration

A poison acts more rapidly when inhaled in gaseous form or when injected intravenously.

Next when inject intramuscularly or subcutaneously.

A poison acts slowly when swallowed or applied on skin.

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By @forensicfield Introduction The resultant of poisoning depends on many factors. There are number of reasons which can affect intensity of poisoning are further explained, such as; Dose. Time of intake Way of taking Environmental factors, etc. Dose Amount of the poison is determine the affect of it on the body. Smaller the dose, lighter […]

via Factors Affecting The Intensity Of Poisoning — Forensic’s blog

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Forensic Structural Engineeringg via Australian Business Network

Structural engineering is a specialty within the field of civil engineering which focuses on the framework of structures and on designing those structures to withstand the stresses and pressures of their environment and remain safe, stable and secure throughout their use. To explain a little differently, it can be said that structural and consulting engineers […]

via Understanding The Concept Of Structural Engineering — Australian Business Network

Autopsy of a Dill Pickle-Introductory Lab for Anatomy or Forensics!

A Pickle Autopsy? YES!

If you teach Anatomy & Physiology, you know the struggle of the first unit…. it’s HUGE!! … and jam-packed with things that are absolutely essential for students to know in order to be successful in the course.  I usually struggle with finding activities to review the body cavities and directional terms.  This year, someone suggested using the pickle autopsy and I’m so glad I did!

The lab I used was published in The Forensic Teacher and would be appropriate for either discipline (I teach both this year).  Here is the link to the lab I used http://www.theforensicteacher.com/Labs_files/picklelabsheets.pdf  A clever fellow teacher friend came up with the storyline that there was a gang war between the Claussens and the Vlasics in the fridge that resulted in no survivors. I loved it so I also used that storyline to frame my lab.

Set Up– The Basics

Now that I had my lab picked out and my story to tell, I had to figure the logistics of how to get everything set up.

First, the pickles….

img_9918

I found the big jars of dills at Walmart for $5.97 each. The smaller pickles I got because I wanted some of my “victims” to be pregnant (or they could also be small children pickles lol).  I had a hard time estimating how many pickles were in the big jars, but these 2 had a total of 33 pickles– more than enough for my classes. The picture below shows them separated by “male” and “female” victims (my “male” pickles are the ones with the stems lol).

Here are all the supplies I used for the lab: img_9916

How to make them look like victims….

I glued wiggly eyes onto thumbtacks for their eyes (so I can reuse them)img_9917

I also used pellets that go in pellet guns for bullet wounds (I smashed them a little with the hammer first and dipped them into gel food coloring before I stuck them in the “victims”)img_9922

I made their heads from an olive stuck on a toothpick– some I even squished so their “brains” fell out a little lol.  I also gave all of them a “spine” (a toothpick on the dorsal side just under the skin).  I also broke several of the toothpicks so this “injury” might be discovered and included in the story of their “victim”. img_9937.jpg

All the “victims” had a bead implanted in the vicinity of their heart.  If the bead was red, they had a normal heart.  If it was black or dark purple, it represented a heart attack.  I found that if you make a slit on the side of the pickle (choose a wrinkle), it will often be completely unnoticeable and students will wonder how in the world you got those beads in there!  I also slipped in a small green bead in the neck region of a few of the “victims” and told my students I heard that some of the gang members involved in the war were caught raiding the grapes from the fridge and several choked on them when their leader caught them.

I also told them that the gang members were not healthy and many had various diseases and disorders because they didn’t take care of themselves.  Many had white beads implanted in various areas.  These beads represented a tumor in the particular area.  Knotted pieces of rubber bands in the abdominal region represented parasites.  Many had broken toothpick “limbs”.  I also had several who were pregnant.

This is the sheet of “Helpful Hints” I gave my students with their lab:

img_9941

A Snapshot of My “Victims”

I separated my “victims” into 4 general types based on their cause of death:

  1. Trauma or internal bleeding (Stabbed or gunshot, injected with red food coloring)
  2. Poisoning/ Drug Overdose (I soaked them in baking soda but didn’t get a very good result)
  3. Heart Attack (black bead instead of red bead in chest)
  4. Drowning (blue food coloring injected in chest area)

 

My “victims” had multiple things that could have resulted in their deaths, but having 4 major things just helped me keep it organized. I also put them in separate dishes while I plotted their demise 🙂 img_9926

I also kept them separate in labeled gallon ziplock bags to transport them to school. img_9927

The Lab Set Up

I set my lab up as a mini crime scene.  I had some fake vampire blood from my forensics class that I also added to help set the scene.  I also added in some extra plastic swords and pellets around the “victims”.  (I let my students pick their own “victim” from the scene). img_9948

Group Jobs

Students were in a lab group of 3 per “victim”.  In my lab, every student in the group has a specific job and job description.  It just helps my lab groups run more smoothly and tends to decrease the possibility that one student does the lion’s share of work.  These are the jobs I gave my groups for this lab: img_9936.jpg

My Take on the Pickle Autopsy Lab

Would I use it again? Absolutely!  My students became very proficient at actually using the directional terminology and identifying the body cavities that we talked about in class.  I heard many meaningful conversations within the groups… “That’s a break in his arm that’s intermediate between the shoulder and the elbow” “I think this sword went through the abdominal cavity and not the thoracic cavity”…. This was so much better than hearing them try to memorize a diagram or a chart of the directional terms!

They loved getting into our “gang warfare” story.  I had them fill out a Coroner’s Report detailing the abnormalities they found both in, and on their “victim”, as well as the location of these abnormalities.  Then, they had to determine the cause of death for their victim, supporting their opinion with specific details from their autopsy.  At all times within their report, they had to incorporate correct anatomical terminology.  Finally, they had to create a narrative of what happened to their “victim” based on the findings from their autopsy.  Several groups shared with the class.  It was lots of fun!

 

 

A Pickle Autopsy? YES! If you teach Anatomy & Physiology, you know the struggle of the first unit…. it’s HUGE!! … and jam-packed with things that are absolutely essential for students to know in order to be successful in the course. I usually struggle with finding activities to review the body cavities and directional […]

via Autopsy of a Dill Pickle- A Great Introductory Lab for Anatomy or Forensics! — Edgy Instruction

Improper Evidence Gathering

“[…] Improperly Photographed Impressions: If the examination involves a photographed tire impression, many things can affect the dimensional accuracy of that photograph. If the camera’s film plane (back) is not perfectly parallel to the impression, then the photograph will have a perspective problem that can affect the ability to accurately enlarge the photograph of the […]

via “Improperly Photographed Impressions”. — Mantracking

this day in crime history: august 26, 1980

On this date in 1980, two men made an early morning delivery of what appeared to be computer equipment to the Harvey’s Resort and Casino in Stateline, NV. Harvey’s employees soon discovered the “computer equipment” and the note attached to it. The note informed them that the large package was a bomb, and that it would go off unless the bombers were paid $3 million by the casino.

Police, the FBI, and the ATF were called in. Bomb squad personnel examined the object and confirmed that it was a bomb. The device, which was very sophisticated, contained a large amount of dynamite.

The decision was made to pay the ransom, then concentrate on tracking down the extortionists later. Unfortunately, the delivery of the ransom money – which was to be done by police helicopter – didn’t go off as planned. This left the bomb squad with the task of figuring out how to disarm the largest dynamite bomb anyone in law enforcement had ever seen.

After x-raying the equipment and carefully examining it, the explosive ordnance disposal experts decided that the best was to disarm it way to quickly disconnect the detonators before they could set off the dynamite. To do this, they rigged shaped charges of C-4 and positioned them so they would blow the detonators off. Sand bags were stacked around the bomb to minimize the damage in case the plan didn’t work. This was a good idea, as the plan didn’t work. The shaped charges set the bomb off, destroying most of the casino and causing some damage to the neighboring hotel. Thankfully, there were no injuries from the explosion.

As the ensuing investigation unfolded, a suspect soon emerged: a Hungarian immigrant from Clovis, CA named John Birges. Birges, as it turned out, lost thousands of dollars gambling at Harvey’s. (note to all you high rollers out there: You can lose. That’s why they call it “gambling.”) In the summer of 1981, investigators received a tip that Birges had stolen dynamite from a construction site. Forensic examination matched the dynamite used at the site with that used in the Harvey’s Casino bomb. John Birges was arrested in August 1981, almost a year after the bombing. His three accomplices were soon arrested as well. It wasn’t long before they flipped and agreed to testify against Birges in exchange for lighter sentences. John Birges was convicted of multiple state and federal crimes. He died in prison of liver cancer in 1996.

Nobody Move!

On this date in 1980, two men made an early morning delivery of what appeared to be computer equipment to the Harvey’s Resort and Casino in Stateline, NV. Harvey’s employees soon discovered the “computer equipment” and the note attached to it. The note informed them that the large package was a bomb, and that it would go off unless the bombers were paid $3 million by the casino.

Police, the FBI, and the ATF were called in. Bomb squad personnel examined the object and confirmed that it was a bomb. The device, which was very sophisticated, contained a large amount of dynamite.

The decision was made to pay the ransom, then concentrate on tracking down the extortionists later. Unfortunately, the delivery of the ransom money – which was to be done by police helicopter – didn’t go off as planned. This left the bomb squad with the task of figuring…

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this day in crime history: April 20, 1986

Memorial to the incident in Edmond, OK036750-police-raid

On April 20, 1986, Postal Service employee Patrick Sherrill went on a shooting spree in a post office in Edmonds, OK. Twenty people were shot, leaving fourteen dead and six injured. At the conclusion of his rampage, Sherrill turned the gun on himself and committed suicide. It is believed that the shooting may have been motivated by a reprimand that Sherrill had received the day before. The incident is often credited with inspiring the phrase “going postal.”

Further reading:

Murderpedia – Patrick Henry Sherrill

Wikipedia – Patrick Sherrill

Time – “Crazy Pat’s” Revenge

Nobody Move!

USPSmemorial Memorial to the incident in Edmond, OK

On this date in 1986, Postal Service employee Patrick Sherrill went on a shooting spree in a post office in Edmonds, OK. Twenty people were shot, leaving fourteen dead and six injured. At the conclusion of his rampage, Sherrill turned the gun on himself and committed suicide. It is believed that the shooting may have been motivated by a reprimand that Sherrill had received the day before. The incident is often credited with inspiring the phrase “going postal.”

Further reading:

Murderpedia – Patrick Henry Sherrill

Wikipedia – Patrick Sherrill

Time“Crazy Pat’s” Revenge

View original post