CRIME MAPS DISCLAIMER

This Web page is a public resource of general information. The Automated Regional Justice Information System (ARJIS) does not make any warranty, representation or guarantee as to the content, sequence, accuracy, timeliness or completeness of any of the database information provided herein for any reason. All aspects of the data provided herein are susceptible to a degree of error due to the complexities of the process involved in compiling and programming the data.

All materials contained on this site are distributed and transmitted "AS IS" without warranties of any kind, either express or implied including without limitation, warranties of title or implied warranties of merchantability or fitness for a particular purpose. In no event shall ARJIS or its member agencies become liable to users of these data for any loss or damages, consequential or otherwise, including but not limited to time, money, or goodwill, arising from the use, operation or modification of the data. The visual presentation of data is being provided strictly as a courtesy and not as an obligation to its readers. ARJIS and its member agencies do not have the available staff to assist in the interpretation of the data presented herein.

The ARJIS Website should not be relied upon for emergency services and is in no way designed to serve as an alternative to emergency services provided by the 911 emergency telephone service. If you have an emergency or important time-sensitive crime information, please communicate this information to the appropriate law enforcement agency within your jurisdiction through the 911 emergency telephone service.

To proceed through this site, you must acknowledge that you have read this disclaimer and that you understand that the information is being provided for informational purposes only.

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About San Diego County Regional Crime MAPS

This page provides background information about this website and should be read by all first-time users. This is the initial version (1.0.33) of Crime MAPS and was released to the public on July 17th, 2006. Please check back frequently as changes and additions to the site will continually be released. If you have already read this, you can go directly to the first screen by clicking the "Go To Mapping Application" at the bottom of this page.

The following topics are covered on this page:

Origin of Crime MAPS incident data

The primary local law enforcement agencies in San Diego County take reports for all crime cases, arrests, citations and some traffic collisions. The reports are entered into the Automated Regional Justice Information System (ARJIS), which provides the incident data for Crime MAPS. Agencies that provide data to ARJIS include the San Diego County Sheriff, all city police departments in San Diego County, the San Diego Harbor Police, the San Diego Unified School District Police, and the San Diego Community College Police.

Some city police departments and the County Sheriff also provide data for some universities and community colleges in their jurisdictions. These are University of San Diego, Point Loma Nazarene, MiraCosta, and Southwestern. However, data from UCSD, SDSU, CSU-San Marcos, Cuyamaca, Grossmont, and Palomar are not provided. Also, federal and state law enforcement agencies (military police, FBI, Border Patrol and CHP) do not provide data to ARJIS.

Location options

Crime MAPS allows you to select a jurisdiction (city, unincorporated area in the county, neighborhood, or political district) and a location of interest. The location can be a school, hospital, ZIP code, tourist attraction, major shopping center, neighborhood, address, or intersection. Except for a ZIP code or neighborhood, a radius ranging from 500 feet to 1 mile can be selected to generate an orange shaded area around the selected location on the resulting map. Incidents will be mapped both in and outside (twice the radius) of this area. Note that an entire city nor the unincorporated county cannot be selected.

Types of incidents available for mapping

Various types of crimes, arrests, citations, and traffic-related incidents are available. Crime types include: aggravated assault, arson, commercial burglary, homicide, malicious mischief/vandalism, residential burglary, robbery, simple assault, theft, vehicle break-in, and vehicle theft. Arrest and citation types include: curfew violation, deadly weapon possession, drunk in public, narcotics, prostitution, and truancy. Traffic-related incident types include: DUI, citations, and collisions.

Only incidents with a valid street address or intersection are included. In some cases a victim may not know where the crime occurred, e.g., if his pocket was picked somewhere downtown. Such a crime will not have an address and therefore will not be included.

Time periods of the incident data

Crime MAPS is updated with new data every week on Monday. This data includes reports that have been entered in ARJIS up through the previous Saturday. Some law enforcement agencies may be several weeks behind on their data entry so if you are not getting the expected number of incidents for the most recent week, either search further back in time or contact your local agency to clarify.

Any time period of 92 days or less within the past twelve months can be searched. The period can be defined by start and end dates, times of the day, and days of the week. If you are searching an area with a large number of incidents, you may want to limit your time period to fewer than 92 days.

Incident attributes

The map's Identify feature can be used to determine the following attributes or characteristics for each incident or map location at which incidents are mapped: type of incident, hundred-block address or street intersection, date, day and time of occurrence. Earliest and latest dates and times are included because some crimes have a range of when they might have occurred. For instance, a car was parked at 10pm on the 3rd and discovered gone at 7 am on the 4th.

Not all offenses within one report can be queried and mapped. A crime report may contain more than one offense, e.g., a robbery and an assault. Only the primary offense type can be queried and mapped. In this example, the map will show a robbery because it is the more serious offense.

Victim names and exact address data have been removed to protect the privacy of victims. Although the symbols are mapped using the specific address, when the incidents are identified, the addresses only show the hundred block numbers, not exact addresses.

Incident locations on the map

All incidents are mapped at specific street addresses or intersections. The symbols are shown on the streets at those locations. This means that incidents that occur in parks, on school grounds or campuses, at shopping malls, or other such locations are mapped on a street and not at the actual location of the incident in the area. Also, when multiple incidents occur at one address or intersection, the map will show only one symbol. Each symbol can be checked with the map's Identify feature to see how many are at the same location.

Comparison with incident descriptions in the media

Some offenses may be shown differently than initially reported in the media. For example, if the victim of a robbery was seriously wounded, the offense may be recorded (and therefore mapped) initially as a robbery but then changed to a homicide if the victim later dies.

Comparison with published law enforcement agency data

There are several reasons why the incident data mapped on this website may not match that published by the various law enforcement agencies. The main one is that not all incidents can be mapped, e.g., those without a valid street address. For official crime statistics, click on Crime Statistics on the ARJIS website www.arjis.org or contact your local agency.

Different results on different days

ARJIS is continually receiving police reports for recent as well as older incidents so the incident data base is subject to change over time. There can be delays in discovering and reporting crimes, e.g., a home burglary may not be discovered until a person returns from vacation. A robbery may become a homicide if the victim dies later. There can also be delays in entering reports into the ARJIS system. And in the case of a homicide, it might take several days for the Medical Examiner to determine that the death was unlawful.

School and shopping center data

The menu of schools includes the public and private school sites in the San Diego Association of Government's (SANDAG) school database (www.sandag.org/resources/maps_and_gis/gis_downloads/downloads/metadata/schoolsdoc.htm). Not included are colleges, universities, and other institutions of higher education. If a school of interest is not listed, use its street address or the nearest street intersection.

Only major shopping centers are included. These are defined by SANDAG in one of its activity center layers. See www.sandag.org/resources/maps_and_gis/gis_downloads/downloads/metadata/majattrsdoc.htm for the selection criteria. For smaller shopping centers, use the street address of a specific store or the nearest street intersection.

Help file

A HELP file has been created to guide users through each step of the mapping process. It explains the various options in selecting locations, incidents, and time periods, as well as the use of the various buttons on the map screen. You can see the file by clicking on the HELP button at the top of the Location, Incidents, and Time Period screens, and under Information on the Map screen.

Contact information

For technical difficulties with the mapping application, contact the ARJIS webmaster at webmaster@arjis.org.

For questions about the incident data, contact the person listed below for your jurisdiction:

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