§ 588. Sufficiency of specification
If a specification is required in prosecutions for offenses under this title, it shall be sufficient to specify the offenses with such certainty as to time, place and person as the prosecutor is able, and the same may be amended upon trial. When the specifications set forth the sale or furnishing to any person or persons unknown, the witnesses may be inquired of as to such transactions. If the name of the person is disclosed, it may be added to the specifications, and upon such terms as to postponement of the trial as the court deems reasonable.