The bill amends Massachusetts General Laws, specifically Chapter 126, Section 40, to enhance the reporting requirements for sheriffs regarding the population of jails and houses of correction. It introduces a new requirement for a comprehensive overview of the quarterly population report for individual Massachusetts Sheriffs' Offices. The sheriff is mandated to record detailed data for each person committed, including identifiers such as probation central file number, state identification number, race and ethnicity, offense-based tracking number, and various other metrics related to their incarceration and release. The reports must be aggregated quarterly and submitted to key public safety officials without any identifying information about individual inmates.

Additionally, the bill includes a disclaimer regarding the limitations of data collection, particularly for case disposition, bail amounts, and reasons for no bail, which are not managed by the Sheriffs' Offices. It emphasizes that the Massachusetts Sheriffs Association is collaborating with the Trial Court and the Executive Office of Public Safety and Security to refine these metrics for better data retrieval and reporting. The bill aims to improve transparency and accountability in the management of jail populations while ensuring the protection of individual privacy.