1. On and after September first, nineteen hundred seventy-three, in every felony case involving the possession or sale of a dangerous drug, the head of the agency charged with custody of such drugs, or his designee, shall within forty-five days after receipt thereof perform or cause to be performed an analysis of such drugs, such analysis to include qualitative identification; weight and quantity where appropriate.
2. Within ten days after the report of such analysis is received by such agency, the head thereof or his designee shall forward a copy thereof to the appropriate district attorney and inform him of the location where the subject drugs are being held.
3. The failure to have an analysis made or to forward a copy thereof within the time specified in subdivisions one and two of this section shall not be deemed or construed to bar the making or granting of a motion pursuant to this article or to the prosecution of a case involving such drugs.