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6.1.D. - Page 18 <br /> According to The Daily Journal, ALPRs in San Mateo County, and Northern California <br /> generally, collect massive amounts of data:45 <br /> • In a 12-hour shift, one of the City of San Mateo's two ALPR-equipped patrol cars <br /> accumulated nearly 10,000 images from four cameras mounted on the roof of the cars <br /> (even in the dark).46 <br /> • In one year,NCRIC amassed around 46.5 million images from its partner agencies.47 <br /> The data are purged every 12 months, except for those records connected to a crime, which can <br /> be held for up to five years. <br /> Law enforcement places a high value on the amount and quality of the data they collect from the <br /> ALPRs. For example, San Mateo Police Chief Susan Manheimer informed the Daily Journal: "I <br /> can't overestimate how important it really is. They're not looking at them for collecting data to <br /> know where our neighbors travel, we're specifically looking for cars involved in specific <br /> crimes."48 <br /> As the Grand Jury discovered, seven of the nine County law enforcement agencies using ALPRs <br /> have a link on their websites to a policy statement. This policy, in all cases, with the exception of <br /> Menlo Park, is a boilerplate statement provided by NCRIC.49 The information in this generic <br /> document does not really provide the level of detail that would be helpful to someone looking for <br /> specific information. For instance, the law states that the policy shall include: <br /> (E) The title of the official custodian, or owner, of the ALPR system responsible for <br /> implementing this section."50 <br /> The NCRIC policy provides the following information regarding "custodians11:51 <br /> Custodian of Records and Records Requests <br /> Each agency operating ALPR technology retains control and ownership as the official <br /> custodian of its records, and must independently verify all external information obtained <br /> via NCRIC Information Systems. To the extent permitted by law, requests for <br /> information under the California Public Records Act or similar applicable laws will be <br /> directed back to the owner of the requested data. <br /> The City of San Mateo Police Department's website provides an example of a well-executed and <br /> well-publicized policy in this regard. The police department currently uses ALPRs and, in <br /> addition to a link to the NCRIC policy statement, its website provides helpful information for <br /> 45 Samantha Weigel,"Who's watching who?:License plate readers used throughout San Mateo County,"The Daily Journal, <br /> April 8,2015.http://www.smdailyjoumal.com/articles/lnews/2015-04-08/whos-watching-who-license-plate-readers-used- <br /> throughout-san-mateo-county/1776425141346.htm1 <br /> 46 Ibid. <br /> 47 Ibid. <br /> 48 Ibid. <br /> 49 See Appendix A for text of"NCRIC Automated License Plate Reader Policy." <br /> 5o California Civil Code,sec. 1798.90.51 <br /> 51 NCRIC,"NCRIC Automated License Plate Reader Policy."https://neric.org//htm]/NCRIC%20ALPR%2OPOLICY.pdf. <br /> 2016-2017 San Mateo County Civil Grand Jury 11 <br />