Download - 1 MODEL ACADEMIC CURRICULUM MODULE 9 Crime Analysis for Problem Solvers in 60 Small Steps
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MODEL ACADEMIC CURRICULUM
MODULE 9
Crime Analysis for Problem Solvers in 60 Small Steps
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IntroductionThe 60-step manual assumes that you are an experienced
analyst and you are accustomed to providing the kinds of information needed to support police operations.
This means that:
1. You use modern computing and know how to access and manipulate comprehensive databases.
2. You know how to use software to map crimes, to identify hot spots, and to relate the results to demographic and other data.
3. You routinely produce charts showing weekly or monthly changes in crime at departmental and beat level, perhaps to support CompStat-style operations.
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Introduction4. You are accustomed to carrying out analyses into such
topics as the relationship between the addresses of known offenders and local outbreaks of car theft and burglary.
5. You may have carried out some before-and-after evaluations of crackdowns, such as on residential burglaries or car thefts.
6. You have some basic knowledge of statistics and research methodology such as is provided by an undergraduate social science degree.
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Prepare Yourself
1. Rethink your job or your future job.
2. Be (or become) the local crime expert
3. Know what is effective (and not) in policing (*see chart on next slide)
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Learn About Problem-Oriented Policing
4. Become a POP expert
5. Be true to POP (*see chart on next slide)
6. Be very crime specific
7. Be guided by SARA - not led astray!
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Study Environmental Criminology
8. Use the problem analysis triangle
9. Know that opportunity makes the thief
10. Put yourself in the offender's shoes
11. Expect offenders to react
12. Don't be discouraged by the displacement doomsters
13. Expect diffusion of benefits
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Scan for Crime Problems
14. Use the CHEERS test when defining problems
15. Know what kind of problem you have
16. Study the journey to crime
17. Know how hot spots develop
18. Learn if the 80-20 rule applies
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Analyze in Depth
19. Research your problem
20. Formulate hypotheses
21. Collect your own data
22. Examine your data distributions
23. Diagnose your hot spot
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Analyze in Depth24. Know when to use high-definition maps
25. Pay attention to daily and weekly rhythms
26. Take account of long-term change
27. Know how to use rates and denominators
28. Identify risky facilities
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Analyze in Depth
29. Be ready for repeat victimization
30. Consider repeat offending
31. Know the products that are craved by thieves
32. Conduct case control studies
33. Measure association
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Analyze in Depth
34. Look for crime facilitators
35. Understand the crime from beginning to end
36. Be sure to answer the five "W" (and one "H") questions
37. Recognize that “to err is human”
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Find a Practical Response
38. Embrace your key role at response
39. Increase the effort of crime
40. Increase the risks of crime
41. Reduce the rewards of crime
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Find a Practical Response
42. Reduce provocations
43. Remove excuses for crime
44. Find the owner of the problem
45. Choose responses likely to be implemented
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Assess the Impact
46. Conduct a process evaluation
47. Know how to use controls
48. Consider geographical and temporal displacement
49. Examine displacement to other targets, tactics and crime types
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Assess the Impact
50. Watch for other offenders moving in
51. Be alert to unexpected benefits
52. Expect premature falls in crime
53. Test for significance
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Communicate Effectively
54. Tell a clear story
55. Make clear maps
56. Use simple tables
57. Use simple figures
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Communicate Effectively
58. Organize powerful presentations
59. Become an effective presenter
60. Contribute to the store of knowledge
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Exercise 1• University Heights is a 100-unit apartment building located next to an
industrial complex and strip mall shopping area. In the past 6 months, calls for service have escalated.
• The problems include drug dealing, gang activity, criminal mischief, shots fired and loud noise. The majority of calls are received from non-English speaking residents.
• The apartment manager has not been cooperative with police. Tensions between the police and residents is high.
• You are the supervisor responsible for this area of town. Make a list of information that you would request from crime analysts to better understand the problem.
• Then, provide some ideas about how you may respond to such a problem.
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Exercise 2
• Three high schools in the city are experiencing an increase in violence, substance abuse, vandalism and truancy. How might crime mapping be used to identify the sources of the problem in these schools?
• Hint - The “Problem Solving Tips Guide” provides a number of questions for conducting analysis. These will help you determine what questions you have about this problem and what data you may want displayed using mapping.
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Optional Additional Material on Crime Analysis and Mapping
• The rest of the slides in this module offer extended material on crime analysis and crime mapping. These slides are considered optional and may or may not be useful for your particular course.
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Crime Analysis• Crime analysis is the systematic collection of information
that describes crime trends and patterns.
• Crime Analysis can benefit Administrative, Investigative, and Patrol functions.
• Crime Analysis is a “specialized function” in police agencies that require highly trained personnel.
• While most police agencies have the ability to collect lots of data, they do not always possess the technology or expertise to analyze that data.
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Types of Crime Analysis
• Intelligence: Information may include financial and tax information and family and business relationships
• Criminal Investigation: Involves analysis of serial offenders and geographic profiling.
• Tactical: Provides information to patrol and investigations on crime patterns and hotspots.
• Strategic: Explores long-term crime trends
• Administrative: Focus on economic, social and geographic information
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Crime Mapping
• Mapping is one tool that can be used by crime analysts.
• Mapping can allow a department to identify geographic or temporal patterns.
• Many larger departments use mapping on a routine basis.
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Types of Map Information
• Location: Most important for crime analysis
• Distance: Not used much
• Direction: Most useful when considering distance (e.g., serial robber moving around city)
• Patterns: Most powerful investigative and problem solving tool
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Then - Jumbo Pin Maps
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Now - Modern GIS Applications
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Sample Map of DUI Arrestees
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Mapping Hot Spots
• Hot Spot – “A condition indicating some form of clustering in a spatial distribution.”
• Crime is 6 times more concentrated among places than among people
• Therefore, it is more important to ask, “where dun it” than “who dun it”
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Hot Spot Examples
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Modern 3D Mapping
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Modern 3D Mapping
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Future Applications
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Future Applications
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Future Applications
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Crime Mapping
• NIJ Crime Mapping Resources http://www.ojp.usdoj.gov/nij/maps/
• JUSTNET Crime Mapping & Analysis Program http://www.nlectc.org/cmap/
• Sacramento PD Crime Mapping http://gis.cityofsacramento.org/website/sacpd/