Title: Principles of Law Enforcement
1Principles of Law Enforcement
- Chapter 13
- Police and the Law
2Student Objectives
- Acquaint the students with the amount and type
crime in the U.S. and types arrests made by the
police - Learn the role of the Bill of Rights and the
U.S Supreme Ct in regulating the actions of
police - Explain the role of the police in making arrests,
search people and places, and stopping automobiles
3Objectives Cont..
- To familiarize students with the changing
philosophy of the Supreme Court in areas of
search and seizure, custodial interrogation, and
identification procedures - Familiarize students with current standard
police procedures using examples of case law in
areas of search and seizure, custodial
interrogation, and identification procedures
4Introduction
- This chapter is perhaps the most important one in
the text. The role of the police is a very
special one in our society. The police do much
more than enforce the law and make arrests but
police power is what comes to mind when we think
of the police. When police arrest people they
take away a persons freedom and liberty. The
police must know the law and apply it correctly.
5Crime in the U.S.
- Crime is part of life in the United States
- We see crime on TV and we read about it daily in
our newspapers - Crime is measured by two major methods
- Uniform Crime Report
- National Crime Victimization Survey
- Both plan to make significant changes
6Uniform Crime Reports
- The UCR is published annually by the FBI based on
crimes reported to the police across the U.S. - The publication Crime in the United States has
4 sections - Crime Index
- Crime Index Offenses Cleared
- Persons Arrested
- Law Enforcement Personnel
7UCR Cont..
- The Crime Index consists of the FBI part 1 crimes
which are the seven most serious crimes - Murder, Non-negligent manslaughter, Rape,
Robbery, Aggravated Assault, Burglary, Larceny
Theft, and Motor Vehicle Theft - Prior to 1972 it was the only major crime source
but people had concerns about crimes that were
not reported to the police
8National Crime Victimization Survey
- The NCVS is prepared by the institute of justice
which is the research arm of the Dept of Justice - Here a survey is conducted covering a six month
period by surveying persons door to door to find
out if anyone in the household was a victim of a
crime - Questions are asked about the incident and the
information is published yearly
9Comparisons of Data for 1994 UCR and NCVS
10Crime Clock
11The Police and the Constitution
- The primary law regulating life is the U.S is the
Constitution - We now want to look at the Bill of Rights, the
14th Amendment, and the role of the Constitution
in regulating the police - And look at the exclusionary rule
12Bill of Rights and the 14th Amendment
- The 1st 10 amendments are known as the Bill of
Rights - Five of the first ten amendments address the
freedoms or rights people possess when involved
with the criminal justice system - The 1st , 4th, 5th, 6th, and 8th were amendments
were ratified in 1791 - The 14th came in 1868
13Bill of Rights and the 14th Cont
- The Bill of Rights were the direct result of
oppression of the people in England before they
came and settle in America - The 14th had a major affect on the US Criminal
Justice System because it extended the Bill of
Rights to the states
1414th Amendment
No citizen can be denied life, liberty, or
property without due process of law in both
Federal and State Jurisdictions
15Role of the US Supreme Court in Regulating the
Police
- Through its policy of judicial review the
Supreme Ct has had a significant impact on police
procedures as they have developed over the years
16Role of the Supreme Ct Cont..
- 1914 Weeks v U.S. -Brought about changes in
search and seizures - 1936 Brown v Mississippi Ruled certain methods
of police interrogation were unconstitutional - Rights of the individual vs the Rights of Society
- Example You (rights of society) want a safe
classroom but a classmate (rights of the
individual) brings a gun to school
17Balance of Rights
- The Supreme Court has always had conflicting
goals when weighing the rights of society vs the
individual - If we give society too many rights we give up our
individual liberties - If we give individuals too many rights our
society will not be safe from crime
18Exclusionary Rule
- It is not part of the constitution
- It holds based on the 14th amendment that any
evidence seized in violation of the constitution
cannot be used in a court of law against a
defendant - Since 1914 the Supreme Court has been concerned
with the use of illegal means by which police
obtain evidence
19Exclusionary Rule Cont..
- At first the Exclusionary Rule only applied to
Federal Agents and officers - The court continually warned the states to comply
until 1961 when they applied the exclusionary
rule to state courts
20Four Supreme Cases that Shaped Police Policy
- 1914 Weeks vs U.S.- Agents entered the home
without a warrant and seized evidence. The
Supreme Ct overturned the conviction and
established the exclusionary rule - 1949 Wolf vs Colorado- Wolf was an abortionists
and his appointment book was seized w/o a warrant
whereas clients told on him. Wolf was convicted
and later released. By then 31 states had
rejected the exclusionary rule
21Four Supreme Cases that Shaped Police Policy
Cont..
- 1952 Rochin vs California- Police raided Rochins
home w/o a warrant. Upon seeing him place illegal
narcotics in his mouth they forcefully tied to
extract evidence from his mouth. After an
unsuccessful attempt they went to the hospital
and forcefully pumped his stomach and recovered
the capsules. Case was overturned and the supreme
court sent out another warning
22Four Supreme Cases that Shaped Police Policy
Cont..
- Mapp vs Ohio 1961- Again police used a
warrantless entry to enter a womans home and
search for a man linked to a bombing. - While in her home police found obscene
materials and arrested and convicted Ms Mapp - The Supreme Court had enough and imposed the
Exclusionary Rule on all state courts
23Is it Fair?
- Many police officers and citizens feel the
exclusionary rule is unfair - They feel it is procriminal and antipolice
- They feel it allows hardened criminals a chance
to escape in a technicality - Actually the Exclusionary Rule is used more on
drug offenses and not violent crimes
24The Police and Arrest
- The power of the police is restricted by the 4th
and 5th amendments - You cannot deprive citizens their right to life,
liberty, or property w/o due process of law - Arrests can be made with or without a warrant or
when directed to do so by a judicial officer
25The Police and Arrest
- Police can arrest for crimes committed in their
presence - Felony crimes if they have P.C. to believe a
crime has occurred - Under the authority of an arrest warrant
26Probable Cause
- Most arrests are made by officers on the street
without a warrant because once they become aware
that a crime has been committed, it necessitates
immediately action - Most arrest are made by the probable cause
standard - Probable cause is defined as evidence that may
lead a reasonable person to believe that a crime
has been or is about to be committed - It is less than beyond a reasonable doubt
27Reasonable Force in Making Arrests
- The amount of force an officer can use when
making an arrest is called reasonable force - Reasonable force is the amount of force needed to
overcome the resistance by the person being
arrested - Example- Using fists Using Fists
- As the offender escalates an officer may escalate
his use of force - Kicking or hitting the offender after he/she is
handcuffed would be unreasonable use of force
28Deadly Force
- Use of deadly force has long been a controversial
topic - It is permitted when absolutely needed
- Jeopardy, ability and opportunity must be present
- Police can protect their life or the life of
another
29Stopping of Vehicles
- In 1979 in Delaware vs Prouse the Supreme Ct
ruled that it was no longer constitutional to
make routine stops or random spot checks - Today the court still rules that
- Officers may stop a car on reasonable suspicion
- If a traffic violation has occurred
- Using point checks or road blocks as long as
every citizen is subject to the stop - Officers can also legally order persons out of a
vehicle for their safety (Mimms vs Penn 1971)
30 Search Warrants
- Generally officers should obtain a search warrant
prior to any search an seizure - A warrant is a court order issued by a judge
based on probable cause describing the person,
place, or auto to be searched - Officers generally execute warrants during
daylight hours but there are exceptions - No knock provisions
- Generally search warrants are not procured
before the search because of no time to act
31Exceptions to Search Warrants
- Search warrant exceptions are called exigent
circumstances - This means evidence will likely be destroyed if
officers dont act - The suspects might get away
- The officer might be injured
- Incident to lawful arrest an officer has the
right to search the suspects immediate
surroundings to avoid potential injury
32Field Interrogations
- In 1968 Terry vs Ohio established the standard
that allowed a policeman to conduct a stop and
frisk - A stop and frisk is the temporary detainment of a
person by a law enforcement officer for the
purpose of an investigation, accompanied by a
superficial examination by the officer of the
persons body surface or clothing to discover
weapons, contraband, or other objects related to
criminal activity
33Hot Pursuit
- Another circumstance in which a warrant is not
needed - In hot pursuit or close pursuit if officers chase
a suspect into a building, they do not have to
stop and get a warrant. - It would be self-defeating to have to do this
34Consent Searches
- Police can search without a warrant if consent is
given by a person who has authority to give
consent - The request cannot be in the form of a command or
a threat - It must be a genuine request for permission
- An oral reply must be received but a head nod is
not enough - The search is limited to the area where consent
is given
35Consent Search Cases
- 1974 Matlock vs U.S- Ruled a person sharing a
room with another could give permission - 1990 Rodriguez vs Illinois- Police entered a
Chicago apartment after victim (girlfriend) told
police boyfriend had assaulted her and the police
found cocaine
36Plain View
- Plain view evidence is unconcealed evidence
inadvertently seen by an officer engaged in a
lawful activity - Seizure of the evidence without a warrant is
totally legal
37Abandoned Property
- Searches of a persons discarded garbage is not a
4th amendment violation(Abel vs U.S. 1960 - Trash left at the curb is ok too (Calf vs
Greenwood 1988)
38Inventory Searches
- If a vehicle is impounded, officers have the
right to enter and search the vehicle without a
warrant for the purpose of noting all contents - In Colorado vs Bertine (1968) he was arrested
while driving intoxicated and upon an inventory
search canisters of drugs were found case was
upheld
39Open Fields Searches
- In Hester vs U.S. (1924) the supreme court
established an open fields exception - In this case the court said that field not
immediately surrounding the house did not have
the protection of the 4th amendment - In 1989 in Florida vs Riley agents flew over his
house with a helicopter at 400 feet and
discovered marijuana growing in Rileys
greenhouse which was legal
40Automobile Exceptions
- Many students dont like getting stopped by the
police and consider it harassment - We have 4th amendment protection but not as much
as if you were in your home - Vehicles are considered very mobile objects and
the supreme court is lenient on vehicle
warrantless searches
41Good Faith Exception
- If police conduct a search in good faith and it
is later discovered that the warrant is fault or
found to be unsupported by probable cause, the
good faith exception then applies - The is where the police act in reasonable
reliance and good faith on a search warrant - In 1995 Evans vs Arizona he was arrested for a
traffic violation in which a computer erred
showed him with an outstanding warrant that
should have been removed. Police found contraband
and the supreme ct said ok
42The Police and Custodial Interrogations
- When there is not enough physical evidence police
often resort to gain a confession from a
defendant particularly in murder cases - Historically there have been abuses such as
tortures beatings by the police - This came to be the 3rd degree
43Path to Miranda
- From 1936 to 1966 the Supreme Ct attempted to
make police stop misconduct and comply with the
5th amendment - 1936 Brown vs Mississippi
- 1957 The McNabb-Mallory Rule
- 1964 Escobedo vs Illinois
- 1966 Miranda vs Arizona
44The Police and Identification Procedures
- Lineups, showups, and photo arrays are important
in establishing the investigation of a suspect - Lineup- Is placing the suspect with a group of
other people of similar characteristics (hair
color, race, age, height, weight) - Showup- Involves bringing a suspect back to the
crime scene - Photo Array- Is showing a photo of the suspect
with other similar photos to a victim or witness
45Other Identification Procedures
- In Schmerber vs Calif 1966- Blood was forcibly
taken from the suspect who was drunk driving
this was not a violation - In Winston v Lee (1985) The supreme ct ruled that
it was ok to make minor intrusions into the body
but here they removed a bullet from Lee for
evidence and police overstepped their right to
secure the evidence in this manner
46Summary
The police must know the law and conform to it.
To allow the injustices of the past would serve
to erode our justice system whereas we would no
longer be a free society
The End