https://www.incarcerationtransparency.org/

The Incarceration Transparency Database provides data on deaths in prisons and jails for Louisiana, Alabama, South Carolina and Pennsylvania. The project compiles records on individuals who died while in custody and includes information on facility, cause of death, demographic characteristics and incarceration status. The database allows users to explore deaths behind bars by state and year, and aims to increase public access to information about conditions and mortality in prison facilities.

From Incarceration Transparency

ICE Online Detainee Locator System

ICE Online Detainee Locator System

ICE's Online Detainee Locator System lets users search for people currently in ICE or CBP custody by A-number, or by name, date of birth and country of birth.
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VINELink

VINELink

VINELink is the public-facing portal for VINE (Victim Information and Notification Everyday), which lets crime victims and the public look up an offender's custody status.
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The Inmate Locator

The Inmate Locator

TheInmateLocator.com is a portal that consolidates links to federal and state inmate lookup tools in one place.
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