Comm. 013 - 2021-09-22 (testimony) Common Cause Hawaii: items on September 23, 2021 agenda

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Cam mon PRISON Cause POLICY INITIAIIVI Step by Step Guide: How to count incarcerated people at home An overview of the steps involved in adjusting state redistricting data to create equitable solutions to prison gerrymandering iEp 0 ® Work with the state's correctional agency to get data for people incarcerated on Census Day, including; address where person is incarcerated, last known address prior to incarceration, age, race, and Hispanic origin, if available. Get state o To anonymize the data, a unique identifier should be assigned to each record. prison data o In most cases, the data on race is incomplete or the categories used by the from the correctional agency do not line up with census categories, and states will have state's to take a best -fit approach to matching the corrections data to the census correctional data. agency o If the state maintains alternative addresses (address provided at arrest or expected address on release, etc,) those should be included as well, • Ensure address data is as specific and accurate as possible, including street, city, zip code, and state, • Remove all addresses that list another state. • Geocode all remining addresses - geocoding can be done using geocoding software (i.e. ESRI, MapMarker) or the Census Bureau's batch geocoder, available Geocode to states specifically for this purpose, individual o Some states contract with a vendor to do the geocoding. address data o The geocoding process will likely identify additional addresses in need of correction (problems such as "street" instead of "avenue" that look like a complete and accurate address on first glance but fail to match to a mappable address). • For any addresses that fail to geocode, establish a protocol for correcting addresses and recording any edits made. o In 2011, New York established a set of alphabetical codes to note the source of supplemental information used to clean up addresses. o Some corrections will be easy, like misspellings or incorrect abbreviations for cities or street names. o Other addresses may take more research such as looking at additional address data provided by the state's corrections agency (i.e. booking address) or looking at maps of municipal boundaries, zip codes, or online mapping sites like Google Maps.