CIAC CIAC Geospatial Intelligence & Crime Mapping 2 — Questions and Answers
Question 1: CompStat, widely adopted by US police departments, primarily uses crime mapping to:
- Automate arrest warrants based on location data
- Track crime trends geographically and hold precinct commanders accountable for performance (Correct answer)
- Replace human analysts with automated prediction algorithms
- Share crime data directly with the public
Correct answer: Track crime trends geographically and hold precinct commanders accountable for performance
CompStat uses crime mapping and statistical analysis as the basis for regular accountability meetings where commanders must explain trends and responses in their area.
Question 2: In predictive policing, 'place-based' predictions differ from 'person-based' predictions in that they:
- Identify specific individuals likely to commit crimes rather than locations
- Forecast which geographic locations are at elevated risk for crime rather than targeting specific individuals (Correct answer)
- Use biometric data to identify offenders at specific places
- Analyze criminal histories to predict recidivism rates
Correct answer: Forecast which geographic locations are at elevated risk for crime rather than targeting specific individuals
Place-based predictive policing focuses on high-risk locations using spatial and temporal crime data, while person-based approaches target specific individuals.
Question 3: What is a 'buffer zone analysis' used for in crime scene geospatial work?
- Establishing exclusion zones around protected federal buildings
- Identifying all incidents, features, or entities within a specified distance of a point, line, or area (Correct answer)
- Mapping the spread of organized crime from a national border
- Calculating the optimal patrol route for a police district
Correct answer: Identifying all incidents, features, or entities within a specified distance of a point, line, or area
Buffer zone analysis creates a defined radius around a location to identify all relevant incidents, witnesses, or entities within that area.
Question 4: The 'anchor point theory' in geographic profiling suggests that an offender's crimes cluster around:
- Police precincts the offender seeks to avoid
- Significant activity nodes such as home, workplace, or social hangouts (Correct answer)
- Areas with poor street lighting or low foot traffic
- Locations with high concentrations of target victims
Correct answer: Significant activity nodes such as home, workplace, or social hangouts
Anchor point theory holds that offenders commit crimes within their awareness space, which radiates outward from key nodes like home, work, and recreation areas.
Question 5: When an analyst overlays gang territory boundaries with violent crime data in GIS, the primary goal is to:
- Document historical gang origins for archival records
- Identify spatial correlations between territorial boundaries and violent crime concentrations (Correct answer)
- Automatically assign cases to specific detectives
- Generate court maps for gang injunctions
Correct answer: Identify spatial correlations between territorial boundaries and violent crime concentrations
Overlaying gang territories with crime data reveals whether violence concentrates along boundaries (turf conflict) or within territories, guiding investigative and patrol strategies.
Question 6: Which GIS layer would be most useful when analyzing outdoor drug market locations in an urban environment?
- Parcel ownership records
- Street network, lighting infrastructure, and transit stop locations (Correct answer)
- City zoning codes
- School district boundaries
Correct answer: Street network, lighting infrastructure, and transit stop locations
Street networks, lighting, and transit stops identify the accessibility and concealment factors that influence where outdoor drug markets form.
CIAC CIAC Geospatial Intelligence & Crime Mapping 2
CompStat, widely adopted by US police departments, primarily uses crime mapping to: