§ 218-a. County detention facilities for juvenile delinquents and persons in need of supervision. A. To assure that suitable and conveniently accessible accommodations and proper and adequate detention in secure and non-secure detention facilities, as defined in section five hundred two of the executive law and the regulations of the division for youth, will be available when required for the temporary care, maintenance and security of alleged and convicted juvenile offenders, alleged and adjudicated juvenile delinquents and alleged and adjudicated persons in need of supervision. Such regulations shall not require any county to provide temporary care in a secure detention facility for residents of any other county except upon a space available basis. The county executive, if there be one, otherwise the board of supervisors shall designate the agency of county government responsible for the administration of the county juvenile detention program and shall so advise the New York state division for youth, and may make provisions therefor as follows:

1. Provide for the continued operation of the county's established detention facility, so long as it complies with regulations of the division for youth, and is certified by that division.

2. Authorize a contract between its county and one or more other counties, which is or are operating a conveniently accessible detention facility certified by the division for youth and in compliance with regulations of the division for youth, providing for the reception, temporary accommodation and care in such facility of alleged or adjudicated juvenile delinquents and persons in need of supervision held for or at the direction of its family court, for and in consideration of the payments to be made therefor, on a per capita basis, pursuant to the terms of such contract.

3. Authorize a contract between its county and one or more other counties providing for the joint operation and maintenance by them of an already established county detention facility certified by the state division for youth and operated and maintained in compliance with the regulations of the division for youth, which is conveniently accessible to the counties concerned. Such authorization and contract may include provisions for remodeling or enlarging the building of such facility.

4. Authorize a contract between its county and one or more other counties providing for the joint establishment, operation and maintenance by such counties of a new joint county detention facility which shall be located on a site conveniently accessible to the counties concerned and which shall be certified by the state division for youth and which shall be established, operated and maintained in compliance with the regulations of the division for youth.

5. The resolution providing for joint action under three or four above shall be adopted by the board of supervisors of each of the several counties affected, and a committee composed of at least one member of each of such boards shall be created to acquire the necessary real property in the name of the counties affected, and as the joint agent of such counties such committee shall have charge of the construction, equipment, maintenance and operation of such joint county detention facility and, with the advice of an advisory committee consisting of the judge of the family court and the commissioner of social services of each of said counties, shall supervise and control the maintenance and operation of such joint county detention facility. The said resolution may specify the matters as to which the action of such committee shall require the joint approval of the boards of supervisors of all the counties affected and shall prescribe the proportions to be borne by each of the several counties affected of the costs of acquisition of the site and of construction of a new joint county detention facility and the proportions to be borne by each of the several counties affected of the costs of operation of such joint county detention facility, whether established by new joint acquisition and construction or by utilization of an existing county detention facility. The moneys to pay the share to be borne by each county affected shall be provided by appropriation in such amounts and at such times as may be agreed upon.

6. Notwithstanding any other provision of law, commencing October first, two thousand eighteen, a county must provide for adequate detention of alleged or convicted adolescent offenders in a specialized secure detention facility for older youth who are alleged or convicted of committing an offense when they were sixteen years of age and commencing October first, two thousand nineteen, a county must provide for adequate detention of alleged or convicted adolescent offenders in a specialized secure detention facility for older youth who are alleged or convicted of committing an offense when they were sixteen or seventeen years of age. Such facility shall be certified and regulated by the office of children and family services in conjunction with the state commission of correction. Such facility shall: (i) have enhanced security features and specially trained staff; and (ii) be jointly administered by the agency of county government designated in accordance with subdivision A of this section and the applicable county sheriff, which both shall have the power to perform all acts necessary to carry out their duties. The county sheriff shall be subject to the same laws that apply to the designated county agency regarding the protection and confidentiality of the information about the youth in such facility and shall prevent access thereto by, or the distribution thereof to, persons not authorized by law.

B. Notwithstanding any other provision of law, each board of supervisors shall provide or assure the availability of conveniently accessible and adequate non-secure detention facilities, certified by the state division for youth, as resources for the family court in the county pursuant to articles seven and three of the family court act, to be operated in compliance with the regulations of the division for youth for the temporary care and maintenance of alleged and adjudicated juvenile delinquents and persons in need of supervision held for or at the direction of a family court.

C. Each county shall offer diversion services to children who are at risk of being the subject of a petition under article seven of the family court act. Such services shall be designed to provide an immediate response to families in crisis and to identify and utilize appropriate alternatives to juvenile detention.