In the law of evidence. The act or mode of giving authority or legal authenticity to a statute, record, or other written instrument, or a certified copy thereof, so as to render it legally admissible in evidence. Mayfield v. Sears, 133 Ind. 86, 32 N. E. 816; Hartley v. Ferrell, 9 Fla. 380; In re Fowler (C. C.) 4 Fed. 303. An attestation made by a proper officer by which he certifies that a record is in due form of law, and that the person who certifies it is the officer appointed so to do.