Idaho Code § 31-878
The board of county commissioners shall provide for misdemeanor probation services to supervise misdemeanor offenders, in those cases where such probation supervision has been ordered by the sentencing court, and perform such functions as prescribed by the administrative district judge in each judicial district. The board of county commissioners shall provide for misdemeanor probation services through employment of staff, contract or any other process that will accomplish the purposes of this section. Counties shall not be obligated to provide misdemeanor probation services beyond the funds generated by the fees collected pursuant to the provisions of section 31-3201D, Idaho Code, and any additional funds that may be annually appropriated by the board of county commissioners.
Idaho Code § 31-878