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What was the first paid police force in the US and who was the reason
Philadelphia
Steven Girard
Who were the first detectives
Bow street runners
What are Pinkerton’s
Private Investigators
Monitored banks and trains
Tried for stopping organized labor/unions
Rougues Gallery
NYPD organized criminals
organized by crime and height
photo gallery
Who made non-presciption med drugs illegal
IRS did it
also responsible for prohibition
Supreme court decisions that impacted how law enforcement treated people and become professional
due process revolution
What was the first country to use fingerprints and dna to solve crimes
England; London
Locard theory - Edmond Locard
theory of exchange in crime scenes
you leave something and take something
______ who came up with it
Procedural law
how to proceed
miranda rights
vivtims, suspects, witnesses
Substantive law
describes the elements of a crime
Elements/body of crime
corupus delicti
evidence that a crime has been committed before a person can be prosecuted or convicted
Where can you find due process in constitution
bill of rights
5th amendment
What amendment does unreasonable search and seizure violate
4th amendment
What is an arrest warrant
order from the judge demanding a person to come before the courts asap
What is an affidavit
facts and circumstances that build propable cause for a judge to issue a warrant
What do you put on a John Doe warrant
physical description of all external features
What is probable cause
more than suspicion less than certainty
facts and circumstances play into it
What do you need to establish probable cause
plain view/observations
training and experience
personal knowledge
Fruit of the poisioness tree
have search warrant for one thing but find something different when searching
What is a misdemeanor
minor crime that equals less than 1 year in jail and fines
What is a felony
major crime that equals more than 1 year in jail but rarely fines
What is a preliminary investigation
1st person on crime scene scopes the outside perimeters immediately following detection and report to police
What is a dying declaration
admissible heresay in court when the person is actively dying
BOLO
be on the lookout
looking for specific given description
Steps in preliminary investigation
receipt of info and initial response
emergency care
crime scene control
bolo alerts
crime scene determination
evidence
report
Clear by exceptional means
victim drops charges
suspect dies
Role of senior investigator
overall coordination of everything
conduct everything
monitor everything
Who performs the autopsy/works in the morgue
forensic pathologist
Evidence that connects perpetrator to scene or victim
associative evidence
3 ways to document a crime scene
sketch it
photograph it
video tape continuously
What do you have to do to a jury in order to get let off
put doubt in their minds
2 kinds of evidence
class
individual
Class evidence
a group of objects or persons with characteristic physical evidence common to it
ex. soil and hair. paint company
Individual evidence
Individual characteristics can be identified as having originated with a particular person or source
ex. fingerprints and footprints. paint came from certain building
What do you use to make tire impressions and why
dental stone
lightweight and cures quickly
What shows the way a bullet traveled in glass
conical shape
What is a fracture match
individual pieces to collect and match together
What is a layton fingerprint
contact fingerprint on surface
use dust to collect
What is a plastic fingerprint
fingerprint seen with the naked eye
What leaves a fingerprint to find
whole surface and edges of both hands and feet
How do you collect blood
use a clean cotton cloth
What is a question document
mark that conveys a message
ex. swastica, cross, star of david
What are you trying to do in an interrogation
obtain confession
gather more info about crime
What are you not trying to do in an interrogation
identify innocence
Why do you seperate witnesses at a crime scene
avoid conspiring among each other
avoid messing with each others memory
Conditions of a bad witness
someone who is cold, hungry, or sleepy
Characteristics of interrogation room
spartically furnished
just a table and few chairs
no decorations
What is it called when someone has the ability to testify in court on specific topic
credibility
experience on specific topic
What makes a good witness
honest and cooperative
desire to impart information in their possession to the investigator
What makes a bad witness
may desire not to give any nformation in an interview regardless of what they know
What are the 2 miranda rights
right to remain silent
right to counsel
5th amendment
What can tell lying just by listening to a voice
computer voice stress analyzer
How is an obtained confession admissible in court
is freely and voluntarily given
What are the innerogritory questions and the one not to ask
who, what, when, where, why, how
not ask: why not
What goes in a police report
the official objective record of an incident
answering the innerogritory questions
Who keeps the crime stats and how do they do it
FBI
system they use: NIBRS
What does the NCIC (national crime info center) do
tells all info by looking up names, numbers, cars, etc.
accessible to all law enforcement
Who are informants, what do they do and not do
people who cooperate for considerations of charges and paid with money
expect high egos and bragging rights
does not equal get out of jail free card
What is it called when the same crime happens over and over
series of crimes
What is a hot spot
A geographical area that crime rates are extremely high
What is geographical profiling
looking for a suspect within a certain radius where crime happens
look for history of criminals with that specific crime
How does a case become cold and how it reactivates
exhausted all leads
no more evidence
reactivates with new evidence and technology
What does a crime lab tell you
whether the crime was committed or not
possible suspects
dna evidence
test substances
What is forensic science
part of science applied to answering legal questions
the examination
the evaluation
explanation of physical evidence in law
What is criminalistics
deals with the study of physical evidence related to a crime
a study of a crime scene may be reconstructed
interdisciplinary in nature drawing upon:
mathematics
physics
chemistry
biology
How do you measure the efficiency of a crime lab
proximity to where crime occured
quality
timeliness
What helps prevent inefficent in crime labs
normal work place rules
mainly credidation thats tested by an outside agency
What is the NIBIN system and what it compares
national integrated ballistic information network
images of ballistic evidence, both projectiles and casings
What can DNA can and can’t do
identify a person
cannot determine every aspect of a person
What are the 3 mortises
algor
rigor
liver
What is algor mortis
body temperature after death
What is rigor mortis
stiffening of the joints 1-2 hours after death
What is liver mortis
lividity/pooling of the blood in the body after death
How are maggots/bugs used in forensic science
can determine how long death was by age of bugs
What is the person called who studys bugs in forensic science
forensic epimologist
What is time of death
best estimate
Entry vs exit wound
exit wound is bigger because of the elasticity of skin/insides
What are laceration wounds
open and irregularly shaped
caused by blunt object
What are defensive wounds
quick slashes
often on hands and arms
What are puncture wounds
small with no bleeding
easily overlooked
same cause of death as stab
ice pick is most common in homocides
What are insise wounds
bleeds a lot
narrow at edges and gaping in the middle
inflicted with knives or razors
What are the 2 types of homocides
feloniness
non-feloniness
What is a feloniness homocide
intended
planned
What is a non-feloliness homocide
self defense
no intent
What is most commonly used to beat children
electrical cords
belts
What is most commonly used to burn children
cigs
What is maunchauser syndrome by proximity
faked illness with the intention of gaining attention
What is SIDS and what are the symptoms
s____ i____ d____ s_____
no symptoms
not malnourished or dehydrated
What are the 2 types of child molesters
preferential
situational
What is a preferential child molester
has most victimes
driven by fantasies
What is a situational child molester
has less victims
happens in the moment
What are characteristics of a child abuse victim
know more about sexual activity
low self esteem
act out aggressively
introverted
What are amber alerts
cooperation between law enforcement and broadcasters to issue an alert
If you are arrested are you guarenteed to be formally charged
no, being _____ does not mean being _____ ______
Does the media have the right to go where ever they want at a crime scene
no, _____ does not have the right to be anywhere at a ____ _____
put in a staged area away from _____ _____
Where do you take soil samples from
the surrounding area
the depth from where the evidence was found
What is a flaw about an eye witness testimony
not always reliable depending on the circumstances
exposure, attention, etc.
What are field notes and how are they used
more reliable than an officer's memory
primary information source for the incident report
completed in detail may reduce the need to re-contact the parties involved
can be used to defend the integrity of the incident report
What are contact wounds
deposit incompletely burned powder and powder grains
smoke deposits and residue
What are close proximity wounds
incompletely burned powder grains
no smoke deposit