If you’re not keeping score,it’s just practice!
Data-Driven Approaches to Crime and Traffic Safety
DDACTS
DDACTS is an operational model that uses the integration of
location-based crime and traffic data to establish effective and efficient methods for deploying
law enforcement and other resources.
DDACTS Goal
Reduce the incidence of crime, crashes and traffic violations in a community
Reduces Social Harm
Why DDACTS?
● Increasing Demands and Limited Resources
● Conflicting / Competing Demands for Service
● Crime and Crashes Often Occur in Close Proximity
● Crimes Often Involve a Motor Vehicle
● Vehicle Stops Can Yield Criminal Identification and Arrest
DDACTS Advantages
Collaborative EffortGrounded in Community-Oriented Policing
Evidence Based Problem-SolvingFocused Area for High Visibility
EnforcementEnsures Accountability
Fewer Ethical and Legal Concerns
National Organization of Black Law Enforcement Executives
“If the data analysis reveals that criminal activity and traffic crashes
occur at a specific place within a community, then it is at that place
that law enforcement activities need to be focused. A non-biased, data-driven approach to crime and traffic
safety delivers law enforcement services at the right place and at the
right time.”Joseph A. McMillan, NOBLE President
National Partners
Demonstration Sites
●Baltimore County Police Department
●Lafourche Parish Sheriff’s Office●Metro-Nashville Police Department●Oakland Police Department●Rochester Police Department●St. Albans Police Department /
Vermont State Police●Washoe County Sheriff’s Office
DDACTS Guiding Principles
Partners / Stakeholder ParticipationData CollectionData Analysis
Strategic OperationsInformation Sharing and Outreach
Monitor, Evaluate and AdjustOutcomes
Baltimore County Police Department
Preliminary Results
Auto Theft
Burglary
Robbery
18%
29% 35%
Crashes
2.5%49%
VehicleStops
On-Duty Hours in target areas (April-September): 36,522
Metro-Nashville Police Department
Results
YearFatal
Crashes
Traffic Fatalitie
sDUI
ArrestsUCR Part I Incidents
2003 77 82 3,242 48,488
2004 86 95 3,477 46,552
2005 83 90 3,548 45,912
2006 87 97 3,919 43,666
2007 66 74 4,732 42,741
2008 67 72 5,595 41,754
Nashville has experienced a reduction in UCR Part I incidents in each of the last 5 years. DUI arrests have increased 72.6% since 2003. Fatal accidents and fatalities have fluctuated but have declined 12.2% and 13% since 2003, respectively.
DDACTSReturn On Investment
Cost Effective ApproachReduction in Social HarmFewer Calls for Service
Increased Time For High-Visibility PatrolsIncreased Deterrence
Increased Field Contacts
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