Forensics quizzes

Why are serial numbers useful in tool mark analysis

serial numbers are on every common tool like hammers, saws and screwdrivers so they can all be traced to the store that sold them

helle Crafts disappeared and her husband Richard was a prime suspect. Small pieces of remains were found in an area along a river. What tool was found in the river with its serial number filed off?

A chain saw

The dinner of the bore of a rifled firearm is called what?

caliber

What evidence was used to charge Ted Bundy with the Florida State sorority attacks and murders?

Bite mark impressions

Three dimensional (blank) are left in soft pliable materials like putty, mud and concrete

casts

Hard surfaces like a floor that has dirt, dust, blood or ink on them will have (two) dimensional impressions

two

New shoes without wear patterns are considered (blank) evidence

class

The Warren Report concluded that (blank) acted alone in his assassination of President John F. Kennedy and that he fired three shots, two of which struck Kennedy

Lee Harvey Oswald

In the lab, what did you analyze to match a possible suspect to a crime scene cartridge casing?

Firing pin impressions

What are the marks left on the bullet by barrel after a gun is fired?

striartions

civil case in which OJ Simpson was found liable for the deaths of the Nicole Brown Simpson and Ron Goldman, what was the key piece of evidence that convicted jurors that OJ Simpson made the shoe prints found at the crime scene?

He was photographed wearing a pair of Bruno Magli shoes that matched bloody footprints at the crime scene; he previously denied owning a pair of those shoes

At the murder trial of Sacco and Vanzetti, a forensic expert testified that the bullets used to kill the security guards matched Sacco’s gun, even though they could not perform a test firing. After they were convicted, the newly invented (blank blank) was used to conclusively link the murder bullet with Sacco’s gun

camparison microscope

In the Beltway Sniper case in the Washington D.C. area, what other evidence, besides the tests linking a .233 caliber rifle to most of the killings, lead to the arrest of John Allan Muhammed and John Lee Malvo

Fingerprints at two different crime scenes and DNA found in saliva left at the scenes

Indentations scratches or cut marks made in the commission of a crime like a burglary, car break in or digging a cladestine grave are considered

tool marks

What are some types of tools marks

All the above

Will two gun barrels ever have the same rifling characteristics?

no

What tool was found to match the cuts on the metal fencing surrounding a FedEx warehouse that was robbed in the case written about in Dana Kollman’s book Never Suck a Dead Man’s Hand?

A bolt cutter

What kind of microscope in used to compare tool marks?

Comparison

What is the first step in preserving footwear impression

photographing

The discipline concerned with determining whether a bullet or cartridge was fired by a particular weapon is called what?

firearms identification

A criminalist like David Green is an expert in trace evidence, which includes paint, hair, fibers, shoe prints, tire tracks and

glass

The reasons footwear evidence is often overlooked include all of the following except

footwear evidence is impossible to preserve and match to a suspect because all shoes are the same

After photographing tool mark evidence using techniques such as oblique lighting, what is the next step?

Making a tool mark impression with a felxible clay like material

Aaron Hernandez, who played for the New England Patriots, was found guilty of first degree murder. What kind of evidence helped place him at the crime scene, in addition to his DNA found at the crime scene?

Tire impressions from the crime scene matched Hernandez/s rental car tire that had four stones in it

Dr David Baldwin is a (blank), and his work includes developing ways to analyze tool mark uniqueness and developing ways to analyze tool marks individuality

tool mark expert

What kind of microscope is used to get a side by side comparison of the bullets

comparison

one object making physical contact with another leaving some of its physical characteristics on the other object is known as an

impression

The process of (blank) creates unique lands and grooves in the bore of a firearm, making the projectile spin when fired

rifling

What is the preferred material to make a cast of a three dimensional footprint

dental stone

Although Dr. Thomas Noguchi was the medical examiner/coroner in LA country for many years, one of his claims to fame was making a ( blank) of a stab wounds in a body to make a 3D replica of the weapon

cast

in a rifled firearm barrel, the raised portions are called (blank) while the indented portions are called (blank)

Lands, grooves

Wearing shoes and creating wear patterns and picking up materials in the shoe can cause (blank) of shoes and mat a shoe to an impression

individualization

What does GSR stand for

Gunshot residue

Restoration fo (blank) on firearms is possible because they are stamped deeply into the metal and can be recovered through chemical etching

serial numbers

Gregory Klees, who works for the ATF, has examined evidence in notorious cases such as the Ruby Ridge standoff in Idaho, the Branch Davidian siege in Texas and the Washington D.C. Sniper case. What is his career

Firearms examiners