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. Additionally, the bill includes a "Data Definitions" section to clarify terminology used in the reporting process and notes that certain data points, such as case disposition and bail amounts, are managed by the Trial Court rather than the Sheriffs' Offices.

Furthermore, the bill proposes amendments to improve the management and reporting of inmate admissions and releases in Barnstable, emphasizing the collection of demographic data, particularly race and ethnicity, to ensure accurate representation of the inmate population. It mandates detailed reporting on lengths of stay, booking dates, and earned sentence credits, while also introducing new legal language to track demographic information related to inmate participation in rehabilitation programs. These changes aim to enhance transparency and accountability within the correctional system, promote fair treatment, and improve rehabilitation outcomes for all individuals, regardless of their background.