Drug trafficking and weapons charges have been withdrawn against all four people arrested after police conducted a search at an Innisfail business in August 2011.
A preliminary hearing was held in Red Deer on Monday for co-accused Nancy Ann Gosney, 48, William Cunningham, 49, Wessam Zaid Haimour, 42, and Kenneth Dustin Powell, 33, all residents of Innisfail at the time.
Police had charged all four suspects with offences including possession of drugs for trafficking and possession of a loaded, prohibited weapon.