(d) Not later than July 1, 1991, each local and regional board of education shall develop, adopt and implement policies and procedures in conformity with section 10-154a for (1) dealing with the use, sale or possession of alcohol or controlled drugs, as defined in subdivision (8) of section 21a-240, by public school students on school property, including a process for coordination with, and referral of such students to, appropriate agencies, and (2) cooperating with law enforcement officials.