10 Apparatus and instruments for collecting, storing, preserving, stabilising, transporting or extracting microbial, deoxyribonucleic acid (DNA), ribonucleic acid (RNA) or biochemical samples, for medical purposes; kits consisting primarily of tubes, buffer solutions and reagents for diagnostic, forensic identification and testing purposes; diagnostic kits consisting primarily of tubes, buffer solutions and reagents for microbial testing; one or more compatible components of sets used to collect, preserve, store, stabilise, transport or extract microbial, deoxyribonucleic acid (DNA), ribonucleic acid (RNA) or biochemical samples from subjects' saliva for diagnostic / scientific / forensic identification and test purposes, consisting of sample tubes containing buffer solutions, reagents or hard objects with inert or magnetic properties; Buccal tubes; Medical specimen collection devices in the nature of bottles or tubes; Medical specimen collection devices in the nature of bottles or tubes for the collection and storage of deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) samples; Saliva collection devices for medical purposes; Medical specimen collection devices in the nature of tubes for the collection of saliva, buccal, nucleic acids