Sec. 6. A regional jail may provide any combination of:
(1) substance abuse treatment (as defined in IC 11-12-3.8-1.5);
(2) jail treatment (as described in IC 11-12-2);
(3) recidivism reduction programs (as described in IC 11-12-2); or
(4) any other program or service the participating entities determine is necessary or appropriate.