The bill amends Massachusetts General Laws, specifically Chapter 126, Section 40, to enhance the reporting requirements for jails and houses of correction. It introduces a new section titled "Overview of Quarterly Population Report for the Individual Massachusetts Sheriffs' Offices," which requires sheriffs to compile and submit quarterly reports containing 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 not include any identifying information about individual inmates and are to be submitted to key public safety officials and committees. The bill also establishes new definitions for critical data points and clarifies that certain data, such as case disposition and bail amounts, are not owned by the Sheriffs' Offices but originate from the Trial Court.

Furthermore, the bill proposes amendments to improve the management and reporting of inmate admissions and releases in Barnstable, focusing on the collection of demographic data, particularly race and ethnicity, to enhance transparency and accountability in the correctional system. It mandates detailed reporting on the length of stay, booking dates, and release dates for inmates, while also emphasizing the tracking of earned sentence credits and other relevant metrics. Additionally, the bill requires reporting on the demographics of participants in rehabilitation programs, including education and recovery groups, to ensure equitable access and assess the effectiveness of these programs in reducing recidivism. Overall, the proposed changes aim to address systemic issues within the jail system and promote equitable treatment for all individuals.