N.J. Stat. § 2A:164-1
In order that judges conducting courts for the trial of criminal cases may have complete information for use in determining sentences to be imposed, there may be organized and operated in each county a clinic for the study of the mental and physical conditions of defendants to be sentenced and their environments.
Each assignment judge of the Superior Court shall have authority to organize a clinic in the county or counties in which he presides.
A clinic shall consist of any number of qualified persons, more than three, as shall seem proper to the assignment judge organizing the same, one of which number shall be the county probation officer, one a physician licensed to practice in this State and one a psychologist.
Every clinic shall be conducted in accordance with rules prescribed by the courts which it shall serve and shall be operated without expense to the county in which it is organized unless the board of chosen freeholders thereof shall appropriate money to defray such expenses, which they are hereby authorized to do.
N.J.S. § 2A:164-1