Jones is convicted of detonating an explosive device in a public building. Afterwards her lawyer is told that one juror is willing to testify that another informed the jury he was a demolitions expert in the Army and that the type of bomb Jones used was powerful enough to kill anyone within 20 ft, even though no injuries were inflicted by the explosion.

If Jones moves for a new trial, may she offer such testimony in support of the motion?

If so, may the prosecutor call other jurors to testify that this information had no influence on their votes?