affidavit has definitions from the fields of law,writing
1
[ noun ] (law,writing) written declaration made under oath; a written statement sworn to be true before someone legally authorized to administer an oath

Used in print

(Jim Berry Pearson, The Maxwell Land Grant....)

Three weeks later following his recovery , armed with a writ issued by the Catskill justice on affidavits prepared by the district_attorney , Cook and Russell rode to arrest Martinez .

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