Wyo. Stat. Ann. § 1-9-101 Contents of affidavit showing lack of evidence or absent witness; procedure if evidence admitted.
(a) A motion to postpone the trial of a case because of the lack of evidence shall be supported by affidavit showing:
(i) The materiality of the evidence expected to be obtained;
(ii) That due diligence has been used to obtain the evidence; and
(iii) Where it is expected the evidence may be found.
(b) If the postponement is because of an absent witness, the affidavit shall also state:
(i) Where the witness resides, if known;
(ii) The probability of procuring the testimony within a reasonable time;
(iii) That absence of the witness was not procured by the act or connivance of the party seeking the postponement, nor by others at his request or with his knowledge or consent;
(iv) The facts the witness is expected to prove and that affiant believes the facts as stated to be true; and
(v) Such facts cannot be proven by any other witness whose testimony can be as readily procured.
(c) If the adverse party consents that, on the trial, the facts stated in the affidavit will be taken as true, if the evidence is written or documentary, or in case of an absent witness that the witness will testify to the facts stated in the affidavit as true, the trial shall not be postponed for that cause. The party against whom the evidence is offered may impeach the evidence of an absent witness the same as when the witness is present or his deposition is used.