Rule 9. Depositions shall only be taken upon written authority of the secretary of state when it appears to the secretary of state that it is impractical or impossible to otherwise obtain the evidence. Where depositions are permitted, they shall be taken according to the rules for taking depositions in civil cases in the state of Michigan, being Michigan Statutes Annotated, Section 27.854, et seq., with all parties given an opportunity to cross-examine the witness under oath.
Mich. Admin. Code R. 11.9