NYSentencing

§ 210.50   Perjury  and  related  offenses;  requirement  of
                   corroboration.
    In  any  prosecution  for perjury, except a prosecution based
upon inconsistent statements pursuant to section  210.20,  or  in
any  prosecution  for making an apparently sworn false statement,
or making a punishable false  written  statement,  falsity  of  a
statement  may not be established by the uncorroborated testimony
of a single witness.