In any prosecution for perjury or making a false written statement, falsity of a statement may not be established by the uncorroborated testimony of a single witness. Corroboration may be made by circumstantial evidence.
Del. Code tit. 11, § 1234
Corroboration of testimony of perjury or false written statement
11 Del
Official source: Delaware Code Online. Reproduced from public-domain Delaware statutes; confirm against the official source for the current text. Not legal advice.