The state milk board^* may, for the purpose of examination or testing for the enforcement of this law, procure at any time samples of milk or its products whether produced within this state or shipped into and offered, exposed for sale or sold in the state. Any samples taken shall be carefully sealed and labeled with the name, or brand name; the name and address of the owner from whose stock it was taken; the date and place where the sample was obtained; and bear the signature of the person taking the sample. Upon request a duplicate sample sealed and labeled in the same manner shall be delivered to the owner or owner’s representative.