Subd. 1. Unavailability of Witness. A part or all of a deposition may be used as substantive evidence at the trial or hearing to the extent it would be otherwise admissible under the rules of evidence if:
Subd. 2. Inconsistent Testimony. A deposition may be used as substantive evidence at the trial or hearing to the extent it would be otherwise admissible under the rules of evidence if the witness:
Subd. 3. Impeachment. Any deposition may also be used by any party to contradict or impeach the deponent’s testimony as a witness.
A deposition may not be used if it appears that the party offering the deposition caused the deposed witness’s absence, unless part of the deposition has previously been offered by another party.
Minn. R. Crim. P. 21.06