In Massachusetts, there are 105 separate Probation departments throughout the 12 counties: eight divisions of the Boston Municipal Court (BMC); 12 Superior; 62 District; 11 Juvenile; and 12 Probate & Family courts.

In Superior Court , Probation Officers supervise the most serious felony cases.  

District and  Boston Municipal (BMC) Court Probation Officers supervise criminal cases.

Juvenile Court Probation Officers supervise children, adolescents and young adults involved in delinquent, youthful and status offending behavior, as well as, monitor the welfare of children who are before Juvenile Court as subjects of parental abuse and neglect.

Probate & Family Court Probate Officers are involved in assisting the court in civil matters such as domestic issues, divorce, paternity, guardianship and adoption. Probate & Family Court Probation Officers are asked to perform tasks such as investigating custody issues, resolving disputes regarding visitation and enforcing court orders regarding child support as well as drug testing and supervision of job search activity.