Section 700.3405 - Formal testacy proceedings; uncontested cases; hearings and proof(1) If a petition in a testacy proceeding is unopposed, the court may either order probate or intestacy on the strength of the pleadings if satisfied that the conditions of section 3409 have been met or conduct a hearing in open court and require proof of the matters necessary to support the order sought.(2) If evidence concerning execution of the will is necessary, the sworn statement or testimony of 1 of the attesting witnesses to the instrument is sufficient. If the sworn statement or testimony of an attesting witness is not available, execution of the will may be proved by other evidence or sworn statement. If, after diligent search and effort and after the signature of the testator is identified, it appears that the whereabouts of the witnesses to a will cannot be ascertained and it appears on the face of the will that the requirements in this section for a valid will have been met, a presumption arises that the will was executed in all particulars as required by law.1998, Act 386, Eff. 4/1/2000 .