The bill amends Massachusetts General Laws, specifically Chapter 126, Section 40, to improve the reporting requirements for jails and houses of correction. It mandates that sheriffs provide an "Overview of Quarterly Population Report for the Individual Massachusetts Sheriffs' Offices," which will compile aggregate data on the jail population while ensuring individual inmates' identities remain confidential. The reports will include essential data points such as probation central file numbers, state identification numbers, race and ethnicity, offense-based tracking numbers, and details on admissions and releases, with submissions required quarterly to public safety officials and legislative committees.

Furthermore, the bill introduces "Data Definitions & Disclaimer" to clarify specific terms used in the reports and includes an "Important Data Note" regarding certain data points that are not maintained by the Sheriffs' Offices but are sourced from the Trial Court. It also proposes amendments for tracking demographic data and program participation for individuals within the Franklin jurisdiction, emphasizing the need for educational and rehabilitative programs. The bill aims to enhance transparency and accountability in the justice system, ultimately promoting a more equitable approach to rehabilitation and reintegration of individuals into society.