Except as otherwise provided in this rule, evidence of the following
is not admissible against the defendant who made the plea or was a
participant in the plea discussions:
(a) A plea of guilty which was later withdrawn;
(b) A plea of nolo contendere;
(c) Any statement made in the course of any proceedings under Rule
11 of the Federal Rules of Criminal Procedure or comparable state
procedure regarding either of the foregoing pleas; or
(d) Any statement made in the course of plea discussions with an
attorney for the prosecuting authority which do not result in a plea of
guilty or which result in a plea of guilty later withdrawn. However,
such a statement is admissible in any proceeding wherein another
statement made in the course of the same plea discussions has been
introduced and the statement ought in fairness be considered
contemporaneously with it.
