The bill amends Massachusetts General Laws, specifically Chapter 126, Section 40, to enhance the reporting requirements for sheriffs regarding jail populations. It introduces a new section titled "Overview of Quarterly Population Report for the Individual Massachusetts Sheriffs' Offices," which mandates that sheriffs compile and submit quarterly reports detailing various data points for each individual committed to their facilities, including probation central file numbers, state identification numbers, race and ethnicity, and offense-based tracking numbers. These reports must be submitted to key legislative and public safety officials without identifying information about individual inmates. The bill also includes new definitions for critical data points and notes the limitations of sheriffs' offices in reporting certain data, such as case disposition and bail information, which are maintained by the Trial Court.

Additionally, the bill proposes amendments to existing laws regarding the management of admissions and releases in the Barnstable correctional facility, enhancing the tracking of inmate data, including length of jail time, booking dates, release dates, and earned credits. It emphasizes the importance of accurately recording the race and ethnicity of inmates to monitor potential disparities in treatment. The legislation also introduces new legal language to improve the tracking of inmate participation in rehabilitation programs and seeks to delete outdated provisions that may hinder modern rehabilitation strategies. Overall, the bill aims to foster transparency, accountability, and a rehabilitative environment within the correctional system, ultimately supporting the successful reintegration of inmates into society.