La. Public Health and Safety § 40:2266.2
Upon the adoption of a resolution or ordinance by the governing authority of any parish which is contiguous to a parish in which a criminalistics laboratory commission is established and operating, such contiguous parish may elect to come under the provisions of and obtain the benefit of all laws governing the criminalistics laboratory commission now or hereafter authorized. For any parish which is not contiguous to a parish in which a criminalistics laboratory commission is established and operating, the acceptance and concurrence of the commission shall also be required. When any such parish governing authority does so elect, and when its election is thereafter accepted by a criminalistics laboratory commission, if acceptance is required, then it shall become a member of the commission to the same extent as if it had been one of the original parishes included in the original legislative act creating the criminalistics laboratory commission and all provisions hereof relative to district courts, city courts, mayor's courts, sheriffs, and collection of additional court costs funds shall become applicable throughout such parish so electing.
La. Public Health and Safety § 40:2266.2