POTSDAM Valerie L. Jessmer, 22, Potsdam, was arrested by village police at 11:37 p.m. Sunday and charged with criminal possession of a weapon with intent to use, menacing, endangering the welfare of a child and criminal contempt. Ms. Jessmer allegedly threatened her husband with a knife while their child was present. Neither was injured. The husband, whose name was not released by police, holds an order of protection against Ms. Jessmer. She was arraigned and sent to St. Lawrence County jail, Canton, in lieu of $5,000 bail.