Constables in the United States
While Constables primarily serve the Courts, they belong to the executive branch of government.
Student court
A student court is a type of judicial system occasionally seen in student governments. Student courts vary in size and functions, but they are most often engaged in conflict resolution and interpretation of student bylaws and constitutions. Names of student courts vary, with the body variously referred to as the "Student Court," "Judicial Council", the "Judicial Board", the "Supreme Court," or others. Typically, however, student governments only possess legislative and executive branches. Student courts are a less-common feature of student governments.