R. 1:6-6. — Evidence on Motions; Affidavits

If a motion is based on facts not appearing of record, or not judicially noticeable, the court may hear it on affidavits made on personal knowledge, setting forth only facts which are admissible in evidence to which the affiant is competent to testify and which may have annexed thereto certified copies of all papers or parts thereof referred to therein. The court may direct the affiant to submit to cross-examination or hear the matter wholly or partly on oral testimony or depositions.