(a) A local intellectual and developmental disability authority may develop and may prioritize its available funding for:
(1) a system to divert members of the priority population, including those members with co-occurring substance abuse disorders, before their incarceration or other contact with the criminal justice system, to services appropriate to their needs, including:
(A) screening and assessment services; and
(B) treatment services, including:
(i) short-term residential services;
(ii) crisis respite residential services; and
(iii) continuity of care services;
(2) specialized training of local law enforcement and court personnel to identify and manage offenders or suspects who may be members of the priority population; and
(3) other model programs for offenders and suspects who may be members of the priority population, including crisis intervention training for law enforcement personnel.
(b) A local intellectual and developmental disability authority developing a system, training, or a model program under Subsection (a) shall collaborate with other local resources, including local law enforcement and judicial systems and local personnel.

(c) A local intellectual and developmental disability authority may not implement a system, training, or a model program developed under this section until the system, training, or program is approved by the department.