The bill amends Massachusetts General Laws, specifically Chapter 126, Section 40, to enhance the reporting requirements for sheriffs regarding jail and house of correction populations. It introduces a new section titled "Overview of Quarterly Population Report for the Individual Massachusetts Sheriffs' Offices," which mandates sheriffs to 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. The reports are to be submitted to key public safety officials and committees to ensure transparency and accountability. Additionally, the bill 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.

Furthermore, the bill proposes amendments to improve the management and reporting of inmate admissions, releases, and programming within the Plymouth correctional facility. It emphasizes the collection of demographic data, particularly focusing on race and ethnicity, to enhance transparency and accountability in the correctional system. The bill also introduces new legal language to ensure inmates have access to various rehabilitative programs, including educational and vocational training, as well as mental health and substance abuse support. Regular assessments of program effectiveness and participant engagement are mandated, aiming to create a more rehabilitative environment that reduces recidivism rates and promotes successful reintegration of individuals into society.