Criminal Investigation Flashcards
What is criminal investigation?
The process of legally gathering evidence of a crime that has been or is being committed.
What is bias?
A highly personal and unreasoned distortion of judgement
What is crime?
An act or omission forbidden by law
Punishable by fine, imprisonment, or death
What is circumstantial evidence?
Not based in actual personal knowledge or observation of the facts in controversy but if other facts from which deductions are drawn, showing indirectly the facts sought to be proved.
What is a complainant?
Person requesting an investigation or that actions is taken
Often the victim of a crime
What is corpus delicti
Literally means the body or substance of the crime
Law term: to proof establishing that a crime has occurred
What is the definition of elements of a crime
Conditions that must occur for an act to be called a specific kind of crime.
What is evidence?
Anything to be offered in court to prove the truth or falsity of a fact in issue
What is fact?
Something known to be true
What is fence
One who receives and disposed of stolen property on a regular basis
What is field identification
On-the-scene identification of a suspect by the victim of or witness to a crime, conducted within minutes of the commission of a crime
What is prejudice?
An opinion or leaning adverse to anything without just grounds or before obtaining sufficient knowledge
What is Modus Operandi
MO
A criminal’s characteristic method of operation
What is proof beyond reasonable doubt
Level of proof required to obtain a conviction in a criminal trial
What is probable cause
Evidence that warrants a person of reasonable caution in the belief that a crime has been committed or is being committed
What is rapport
A feeling of ease and harmony in a contact or relationship between people
What is reasonable doubt
The level of certainty a juror must have to find a defendant guilty of a crime
What is a statement
A legal narrative description of events related to a crime
What is a suspect
A person considered to be directly or indirectly connected with a crime, either by overt act or by planning and/or directing it
What is a witness
A person who saw a crime or some part of it being committed or who has relevant information
What is a victim
The person injured by a crime
What are the 4 criminal investigation tools
Information
Instrumentation or forensic science
Interviewing
Laws of arrest, search and seizure
What is information
The knowledge a criminal investigator gathers from other persons and other legit sources.
What is instrumentation or forensic science?
The techniques that help in the solution of the crime.
Consists of fingerprints, serology, ballistics, and DNA, etc.
What is interviewing
The questioning of victims, witnesses, or suspects in a criminal investigation
What are the laws of arrest, search, and seizure?
Provides guidance on what investigative techniques are acceptable.
Mastery and knowledge of criminal procedures and the rules of evidence enable the investigator to gather evidence against a suspect that can withstand court challenges.
What are criminal investigation supposed to determine?
To the extent possible, the truth about how a crime occurred
What are the 5 goals of a criminal investigation
To determine if a crime occurred
To legally obtain info and evidence to ID the person(s) responsible for the crime
To legally arrest the suspect(s)
To recover stolen property
To present the best case possible for the prosecutor
What is the significance in the criminal investigation process
To prove establishing that a crime has occurred
Necessary elements that constitute a crime
What is it essential to prove in criminal investigation
The corpus delicti
Elements of the crime
Why? To bring the matter before court to prove guilt or innocence
Where does the legal significance of evidence rest?
On the judge or juror
What SHALL the investigator collect to prove cause beyond a reasonable doubt
Corroborating evidence of the accused persons guilt in order to negate the defenses claims
What is essential for anyone conducting a criminal investigation?
Knowledge of basic fundamentals
Methods
Techniques of investigation
What must a criminal investigator strive for when conducting an investigation?
Objectivity
What are the 5 characteristics of a criminal investigator
Suspicious Curious Observant Unbiased and unprejudiced Develops rapport through interpersonal communication skills
What is suspicious?
Investigator takes nothing for granted
What is curious?
Desires to investigate and learn the facts and truth about people, places, or objects.
Criminal investigators must not attempt to what?
Exhibit expertise in all fields of law enforcement
Discuss the case details with anyone outside the PD
What is professional heavy criminal? (6)
An individual who commits the crime or crimes of: Burglary White collar crimes Larceny Vehicle theft Agricultural crimes Arson
What are the 9 professional criminals
Thief Semi-pro thief (unskilled) Burglar Robber Identify theft Con artist / games / schemes White coat crimes Forgery / credit card abuse Auto theft
What are UUMV offenders typically like
Joy riders
Typically juvenile with friends
What are transportation thieves?
Car “borrowers”
They abandon vehicle when they are done
What are use-in-crime car thieves like
They steal car for the purpose of committing crime
What are insurance fraud swindler car thieves?
Owner abandons vehicle in area he knows vehicle will be stripped.
May burn vehicle or dismantle it in junkyard
What do “strippers and dismantler” car thieves do?
Strippers - attack parked vehicle and remove parts
Dismantlers - tow it to chop shop
What do professional auto thieves do
Steal late model vehicles and resell them
May ship them
Identify the characteristics of street thieves (5)
Encountered more by police Often carry weapons Take reckless chances Steal to procure narcotics or alcohol Most dangerous auto thieves
What are gray market vehicles
Foreign made vehicles not produced for sale in US
Usually Mercedes-Benz
To be operated in US they must meet Department of Transportation and Environmental Protection Agency requirements
What is a salvage switch
Described as the altering of a vehicles identity by placing the serial number of a totaled car onto a stolen car
What are some problems with dealerships inventories
Only do it 30, 60, or 90 Days
Car can be gone for up to 3 months before anyone notices.
What are some problems with rental cars?
The vehicle may or may not be entered as stolen
If it’s not and company just wants car back it turns to civil not criminal case
Identify crimes against persons (5)
Homicide Sex crimes Assaults Child/Elderly abuse Hate crimes
What are the 9 categories of homicide
Anger killing Revenge / jealously killing Triangle killing Killing for profit Random killing Drive-by shooting Murder-suicide Sex and sadism Felony murder
What is anger killing
An extension of the crime of assault
What is revenge or jealousy killing
History of involvement between perpetrator and victim
What is triangle killing
Husband or wife kills spouse who has involved himself/herself with another lover
What is killing for profit
The elimination of another because it would result in profit for the murderer
What is random killing
Seemingly motive-less.
Most difficult for solve
What activity is associated with drive by shootings
Gang activity
What is murder-suicide?
Actor kills another then self
Not uncommon among elderly and mentally distraught