3. How many officers should be assigned to the
patrol function in order to provide the level of
services needed
Decisions regarding allocation are influenced
by factors such as the number of calls for
service, officer response time, geographic
area
5. Patrol is the Core Function of the Police
Service
Traditionally viewed as the task associated
with accomplishing the primary goal of police
organizations: Crime Fighting
6. The large percentage of Police Officer’s time
is spent on a wide variety of citizen demands
that are only peripherally related to law
enforcement
Calls for service studies show that less then
half of all requests are crime related
7. Patrol performs a wide array of tasks that are
not associated with crime control:
Medical Assistance
Utility Problems
Animal Complaints
Cats in trees, (ever see a cat skeleton in a
tree?)
8. A majority of patrol’s time is spent “on patrol”
This creates a “visible presence”
Somewhat deters crime
Promotes an impression of safety to citizens
Decentralizes units in a geographic area so
response time is quicker
10. “Big City Bias”
Overgeneralizations: Minneapolis Domestic
Violence Study vs. Omaha Study
Little Research in the Field on Deployment
Research done on what does not work, not
what does
Skolnick and Bayley Study on patrol allocation
is debatable: The New Blue Line: Police
Innovation in Six American Cities
11. 1st ) Increasing Police does not always reduce
crime
2nd) random patrol neither reduces crime nor
improves chances of catching suspects
3rd) 2 man cars are no more effective then 1
man
4th) Saturation patrolling does reduce
crime, temporally by displacing it
12. 5th) The types of crime that terrorize
citizens, mugging, robbery, burglary, rape, h
omicide is rarely encountered by patrol units
6th) Improving response time has little effect
on the likelihood of arresting criminals
7th) Crimes are not solved through criminal
investigations
J. Skolnick and D. Bailey, The New Blue Line:
Police Innovation in Six American Cities (New
York, NY: Free Press, 1986)
13. Strecher states that “The essence of science is
the verification and advancement of what is
already known with repeated and refined
research. The value of most police research
findings is limited by a lack of both
replication and the refinement of the
research”
V.G. Strecher, Goal Orientated Policing: Major
Police Studies and Findings. Unpublished
Manuscript (Huntsville, Texas Sam Houston
University 1993)
14. Assessing the value of rapid response only on
the dynamic of apprehending criminals is
myopic.
Research on Rapid Response did lead to
CAD, efficiency of patrol, greater citizen
satisfaction
15. Patrol is the most visible and readily
recognized function of modern police
60% or more of the sworn personal in many
agencies are assigned to patrol
Every American community wants 3 things
from their police department: 1) immediate
response to emergencies, 2) Reasonable
Response Times to nonemergency's, 3)
Visibility that provides a feeling of security
16. These are the essential elements of patrol
allocation, deployment, and scheduling
Rapid Response is a demand of citizens
The effectiveness of patrol is still largely
undetermined and under-researched
Hence, “Patrol is Patrol”
17. The ability of the police to “solve” crime is
limited, even with a cooperative relationship
with citizens
Some causes of crime are beyond the police
control: poverty, broken families, substance
abuse, unemployment
18. The FOCUS of police administrators should be
on allocating and deploying officers to
efficiently and effectively manage and reduce
crime
Reppetto tells us that “the way officers are
trained, deployed, and managed has a
substantial, if not primary impact on police
productivity , T.A. Reppetto, The Influence of
Police Organizational Style on Crime Control
and Effectiveness, Journal of Police Science and
Administration 3, no.3 (1975): 274-79
19. Crime prevention is not attainable through
the use of “sit around and wait” patrol
Emphasis should be on repression and
suppression of crime through innovative and
proactive deployment tactics, J.H.
Auten, Crime Prevention and Police Patrol –
Are They Compatible?, Police Chief 48, no.
8 (1981)
20. Very few crime prevention
programs, especially patrol programs have
been evaluated using scientifically recognized
standards and methodologies including
repeated tests under similar and differing
social conditions
21. A meta-analysis reveled that, based on a
review of over 500 crime prevention program
evaluations meeting minimum scientific
standards, there was minimal evidence to
establish what works, what doesn’t, and what
is promising in policing
L.W. Sherman, et al, Preventing Crime: What
Works, What Doesn’t, What’s Promising
(Washington, D.C.: National Institute of
Justice, 1998)
22. Saturation Patrols
Increased Field Interrogations
Increased Traffic Enforcement
High Visibility Patrol
Hot Spots
Order Maintenance Policing (Broken Window
Theory)
23. The effectiveness of patrol is still largely
undetermined and under researched when
viewed in relation to the resources allocated
to the patrol division. The police still
patrol, but patrol allocation and deployment
is still based on concepts and theories long
since discarded.
Sherman, Crime and Public Policy,
25. August Vollmer (1876-1955) earned a national
reputation as an innovator and publicist
of new ideas; and often is called the “father
of modern law enforcement.” Vollmer
reorganized the Berkeley Police
Department, created new units within it, and
increased its capacities with motor vehicles
outfitted with one-way radios that could
monitor the police dispatchers.
He hired college-educated officers
when he could and was the first criminal justice
professor
26. Vollmer developed a list of functions many of
which are still in use today:
Crime Prevention
Criminal Apprehension
Public Service
Traffic Control
Emergency Services
27. Vollmer develop the territorial subunit, aka:
The Beat, a means to allocate police
resources based on workload analysis and
calls for service.
This early work led to many departments
allocating units based on workload
Some agencies still allocate resources evenly
to this day
28. Orlando W. Wilson (1900-1972)
Wilson was one of the first college-
educated police officers
(a street cop, not a college-
educated police executive).
Later, as a police manager and as
an academic, he applied the basic
principles of good management
to law enforcement and helped
inspire “professionalism“ in
policing.
29. The basic purpose of patrol is the elimination
of criminal opportunity
The basic philosophy of Wilson is that patrol
needs to create an impression of
“Omnipresence” the police are everywhere
Does not diminish a thief’s desire but limits
the opportunity
30. Principles of Organization of O.W. Wilson
Tasks should be grouped together in one or more
units under the control of one person. These tasks
may be divided according to:
(a) similarity in purpose, process, method,
or clientele (functional),
(b) the time (temporal),
(c) the place of their performance (spatial), and
(d) the level of authority needed in their
accomplishment.
31. Lines of demarcation between the responsibilities
of units should be clearly drawn by a precise
definition of the duties of each,
(a) duties of a unit should be made known to all
members of the unit.
(b) responsibility within the unit and between
units should be placed exactly.
(c) avoid duplication in execution and neglect
resulting from the nonassignment of a duty.
32. Channels will be established through which
information flows and through which authority
is delegated.
(a) These lines of control should correspond to the delegation
of authority, the placement of responsibility, the supervision
of work, and the coordination of effort.
(b) Lines of control should be clearly defined and well
understood by all members so that all may know to whom they
are responsible and who, in turn, is responsible to them.
(c) Exceptions to routine communication of information through
channels should be provided for emergency and unusual
situations
33. Structure and terminology should facilitate
the understanding of the purposes and
responsibilities of the organization by all its
members. Avoid exotic arrangements and obscure
jargon.
Each individual, unit, and situation should be
under the immediate control of one, and only
one, person, thus achieving the principle of unity
of command
and avoiding the friction that results from
duplication of direction and supervision.
34. The span of control of a supervisor should be large
enough to provide economical supervision, but no
more units or persons should be placed under the
direct control of one person than he or she is able
to manage.
Each task should be made the unmistakable duty
of someone; responsibility for planning, execution,
and control should be definitely placed on
designated persons.
35. Supervision should be provided for every member
of the organization and for every function or
activity.
Each assignment or duty should carry with it
commensurate authority to fulfill the
responsibility.
Persons to whom authority is delegated should be
held accountable for the use made of it and for the
failure to use it.
36. Also known as a “block chart,” “plumbing
chart,” or a “wiring diagram,” the organizational
chart embodies the ancient adage that a picture
is worth 1,000 words.
It uses rectangular boxes to represent
offices, units, or important individual officers in
an agency.
39. Organizational principles are applied somewhat
rigidly, with the hierarchy principle given very
high priority. Authority is very precisely
allocated, with those higher up in the hierarchy
having more power. Rules are explicit, and
organizational discipline is enforced. The agency’s
organizational chart clearly defines areas of
jurisdiction and command-control relationships.
Organizational communications, command, and
control are expected to follow
the chain of command.
40. Arising with the discoveries of the Hawthorne
group, hierarchy and command aspects were not
abandoned, but their importance declined. Lines
of command, control, and communication were
often ignored in favor of work groups, operating
as co-equals, even when they were comprised of
different ranks. Rules were replaced by flexible
guidelines. This model found expression
in the 1970s as team policing, community policing,
and empowerment of client populations in
criminal justice priority-setting became popular.
41. These models promote flexibility and situational
management. The application of COMPSTAT in law
enforcement and problem-oriented policing are both
expressions of this approach. Criminal justice work-
teams are created, reorganized, and disbanded as
needed. There is more use of delegation and
operational control practices than in scientific
management,
but less workplace democracy than in human
relations applications. The scientific management
principles re-emerged as good practices, but not rigid
formulae.
42. The division of labor in a criminal justice
organization will reflect functional, temporal, and
spatial demands placed upon it by its mission.
temporal order - arrangement of events in
time
spatial - pertaining to or involving or having
the nature of space; "the first dimension to
concentrate on is the spatial one"; "spatial
ability"; "spatial awareness"
43. Functional Divisions of Labor
Function is a factor in the Division of Labor.
The units within a large organization often will
have specialized functions and the people
assigned to these units will be specialists.
The functions they are called upon to perform
define their unit within the larger organization.
44. Functional Divisions of Labor
Examples from Law Enforcement:
◦ patrol units
◦ investigative units
◦ CSI teams
◦ dispatchers
◦ juvenile officers
◦ COPs program participants
46. One of the Earliest Patrol Allocation Model
Patrol Units are deployed based on the total
miles in the total area to be patrolled
47. Developed by O.W. Wilson in the 1940’s
Each type of crime was given a hazard
score, prioritizing the incidence of crime
A total weighted sum for each region was
calculated with personnel being allocated
accordingly
48. Queuing models attempted to overcome the
problems of geography and hazard formula
models
Combined probabilistic demands for service
with geographic considerations to reduce
response time for urgent calls for service
49. Based on the demand for police service
predicted by hour and geographic area, using
projections based on past demand data with
variations for weekly and seasonal variations
This was the first attempt to apply
mathematical and probability modeling to
police patrol allocation
50. Several mathematical models were developed
to attempt to maximize the suppression of
crime
These models attempted to identify the
probability of intercepting a crime in progress
and the probability of the crime taking place
The model suffered several flaws all of which
are assumptional rather then mathematical
51. It was believed that the probability of space
time coincidence of crime and patrol could be
measured and that crime occurrence and
patrol were independent
Future studies would limit the utility of these
models
The variables that influenced these models
continue to influence patrol allocation to this
day
52. Computer program designed to assist and
enable police departments to determine the
number of patrol units during various days
and times of the week
Simple analytic model that does not attempt
to equalize the calls for service workload
across watches or shifts
It’s goal is to deploy officers so response
times can be optimized
53. Entirely controlled by user input
Reflects no geographic structure
Insensitive to location of patrol cars in a
geographic area
Differences in crime rates, call-for-service
trends are not easily augmented into the
program
54. PAM: Patrol Allocation Model, computerized
and elaborated versions of PAM represent the
current state of the art of patrol allocation
Designed to determine the number of officers
needed to be assigned to patrol based on
established performance objectives:
Visibility, Response Time, etc.
55. The number of needed officers is only as
accurate as the data used in the model
Models provide an estimate of the number of
officers needed
Models should not be used in lieu of
professional expertise
Models contain errors because they don’t
account for variables in particular
jurisdictions
56. Data used in allocation models is typically
previous years data
A problem with mathematical models is the
failure of them to able to take into account
the fact that policing is a dynamic system
that adjusts to changes in the environment
60. Calls for Service
Service Time: Average time between dispatch
and clearing the call
Roadway Miles: Impacts Visibility
Patrol Speed: Average speed 24.5 mph
Geographic Area
Response Speed
61. Leave Time: Significant Impact on allocation
decisions
1) Vacation Time 9) Light Duty
2) Comp Time 10) Special Assignments
3) Sick Leave 11) Jury Duty
4) Training 12) Workmen’s Comp
5) Holidays 13) Administrative leave
6) Personal Days
7) Military Service
8) Family and Medical Leave Act
62. If and officer is contracted to work 2,086
hours per year, (40 hours a week x 52 weeks)
Taking Leave Rate into account, an officer is
available 1,550 hours a year
In order to fill one position around the
clock, 5 days a week, 8 hours a day, almost
six officers are needed
63. Policing Service Model: Decisions to take part or
not in Community Service Initiatives effects
staffing levels
Visibility Objective: How often should a patrol
unit pass a given point
Response Time: Response goals set by
administration
Officer Availability: Officers available immediately
Administrative Activities
Self-Induced
Self-Initiated Activity
Unrecoverable Patrol Time
Two-Officer Patrol Units
64. Administrative Activities: Meal Breaks, other
Breaks, Court Time, Vehicle Maintenance, etc.
Self-Initiated Activity: Traffic Stops, MV
Arrests, etc.
Unrecoverable Patrol Time: Time to clear a
call, stuck in traffic, report writing
Two-Officer Patrol Units: Allocation
adjustments needed when staffing a unit with
two officers
66. Maximizes Officer Availability
Reduction in Fatigue
Increased Communication between officers
assigned to different shifts
Maximize quality of life
Reduction in Sick Time
Higher Morale
Savings
Reduction in Overtime
Efficient use of equipment
67. Matching staff levels to service demand
Revising Schedules to accommodate
vacations, comp time, sick leave
Designing the schedule to accommodate
policy directives, contract needs
Equipment shortages
Inadequate time between shift changes
Fairness in scheduling holidays, weekends
Overcoming lack of communication between
shifts
68. Accommodating training, meetings, special
assignments, administrative demands
Overcoming restrictions on outside activities
such as education
Overcoming employee fatigue, boredom, low
morale
70. Benefits: Traditional Work
Schedule, fatigue not an issue, shortest
workday, effective use of equipment
Drawbacks: Permanent Days Off,
Calls held for oncoming shift, limited time
off, lower morale
71. Benefits: Allows for overlapping
shifts, less overtime, efficient shift changes
due to overlapping, power shifts, all officers
can be scheduled to work same day for
training, Increased morale due to more time
off
Drawbacks: Expensive to
implement, possible 10 to 20% increase in
officer needed, Equipment shortage, costs
may increase
72. Benefits: Fewer shift changes, rotating
days off, increased morale, more time
off, reduced sick time
Drawbacks: Increased
fatigue, alertness and safety
decrease, Overtime costs increase
73. 5-9 Scheduling
Overlapping Shifts
Power Shifts
Variable Start Times
74. Shift Rotation
Days Off Rotation
Proportional Scheduling
Scheduling Training
Scheduling Vacation and Compensatory Time
Administrative and Unplanned Absences
75. Directed Patrol
Hot Spot Patrol
Aggressive Patrol and Zero-Tolerance Patrol
76. Directed Patrol: Officers are directed to patrol
a specific location for a specific period of
time
Watch for particular offenses
Kansas City study showed that 1/3 of all
patrol time could be directed patrol
It is proactive and aggressive
Patrol units are given instructions directing
their activity
Crime data needs to be analyzed
77. Hot Spot Patrols:
Studies found a substantial amount of crime
is concentrated in certain areas, “hot spots”
Concentrated patrols targeting certain
crimes, drugs, guns, etc.
Studies vary, some short term success, some
long term
Data analysis needed before and after
78. Aggressive Patrol and Zero Tolerance:
High level of patrol intervention
Traffic enforcement
Minor offense enforcement
Field Interrogations
79. Problem-Orientated Policing: “POP” Incident
driven policing, problem solving with the
community
The Broken Window Theory
Compstat: accurate and timely
intelligence, rapid deployment, effective
tactics, ongoing assessment of effectiveness
80. Post 9/11 Reforms: Information sharing
between agencies, eliminating “borders”
Intelligence-Led Policing: Use of data
effectively, establishment of goals with
community involvement, input from patrol
officers