CJ 425 Crime Mapping Unit 4 Seminar “Data”

Next week Sunday 2/6 Mid term week – No Seminar Midterm Essay Exam Access and examine the Burglary to Motor Vehicle Map and use the concepts in your learning from the class to: Discuss the information that the map contains Pages Midterm Essay Exam Acc ess and exa min e the Burg lary to Mot or Vehi cle Map and use the conc epts in your lear ning from the clas s to: Burg lary to Mot or Vehi cle Map o D i s c u s s t h e i n f o r m a t i o n t h a t t h e m a p c o n t a i n s. o W h a t i s i t p o r t r a y i n g ? o W h a t i s t h e t i m e p e r i o d b e i n g a n a l y z e d ? o W h i c h i t e m s a r e l i n e f e a t u r e s ? o W h i c h i t e m s a r e p o i n t f e a t u r e s ? o W h i c h i t e m s a r e p o l y g o n s ? o W h a t d a t a w o u l d b e c o n s i d e r e d p r i m a r y d a t a ? o W h a t d a t a w o u l d b e c o n s i d e r e d s e c o n d a r y d a t a ? o E x a m i n e t h e e l e m e n t s t h a t a r e n o t i n c l u d e d i n t h e m a p. o W h a t i n f o r m a t i o n, i f a n y, i s n o t p e r t i n e n t t o t h e m a p ? o W h a t a d d i t i o n a l i n f o r m a t i o n, i f a n y, c o u l d b e a d d e d t o t h e m a p t o i n c r e a s e i t s u s e f u l n e s s t o t h e r e a d e r ? o A l s o i n y o u r a n a l y s i s, d i s c u s s w h i c h p a t t e r n s y o u m i g h t a n a l y z e f u r t h e r, h o w y o u w o u l d d o s o, a n d w h a t h e l p e d y o u i d e n t i f y t h o s e p a t t e r n s. o U s e a t l e a s t o n e o u t s i d e r e s e a r c h s o u r c e i n c l u d i n g a c a d e m i c j o u r n a l s t o s u p p o r t y o u r r e s p o n s e s. Midterm Essay Exam

Outline Types – Primary – Secondary Database Sources Integrity

Data Sources There are many data sources. These sources can be categorized as: 1.Primary 2.Secondary

Primary Data Data collected originally Surveys Interviews Field research Direct observation

Secondary Data Data that has been collected previously Data collected (primarily) by another individual, group, or organization

Database A data matrix of stored information which can be quickly retrieve. Queries (searches) Select by Attribute Select by Location

Sources of Information Criminal Justice GIS Social, political, economic Demographic Specific purpose

Field Trip dangermond-on-a-new-modality-for-gis dangermond-on-a-new-modality-for-gis

Criminal Justice Data Crime Incidents Arrests Calls for Service Accidents Property Vehicle Persons Field Information or contacts Traffic

CJ Data cont. Court records Dispositions Corrections (case files) Probation/parole Sex offenders Criminal Histories

GIS Data Streets City or State Counties Zip Parcels Parks Buildings Waterways Schools ATMs Parking lots Malls Landmarks Intersections Bus stops Liquor Establishments

Other Sources Demographic Social phenomena

Data Integrity Garbage In – Garbage Out – Data Entry – Timeliness – Validity (accuracy) – Reliability (consistent) – Data transfer process – Confidentiality / Privacy – Data Management