(a) It is the policy of the state of Minnesota to provide a coordinated approach to the supervision, protection, and habilitation of its adult citizens with a developmental disability. In furtherance of this policy, sections 252A.01 to 252A.21 are enacted to authorize the commissioner of human services to:
(1) supervise those adult citizens with a developmental disability who are unable to fully provide for their own needs and for whom no qualified person is willing and able to seek guardianship or conservatorship under sections 524.5-101 to 524.5-502; and
(2) protect adults with a developmental disability from violation of their human and civil rights by assuring that they receive the full range of needed social, financial, residential, and habilitative services to which they are lawfully entitled.
(b) Public guardianship or conservatorship is the most restrictive form of guardianship or conservatorship and should be imposed only when no other acceptable alternative is available.