RULINGS ON EVIDENCE
(a) Effect of Erroneous Ruling. Error may not be predicated upon a ruling which admits or excludes evidence unless a substantial right of the party is affect, and
(1) Objection. In case the ruling is one admitting evidence, a timely objection or motion to strike appears of record, stating the specific ground of objection, if the specific ground was not apparent from the context. When the court hears objections to offered evidence out of the presence of the jury and rules that such evidence be admitted, such objections shall be deemed to apply to such evidence when it is admitted, before the jury without the necessary of repeating those objections.
(2) Offer of Proof. In case the ruling is one excluding evidence, the substance of the evidence was made known to the court by offer, or was apparent from the context within which questions were asked.
(b) Record of Offer and Ruling. The offering party shall, as soon as practicable, but before the court's charge is read to the jury, be allowed to make, in the absence of the jury, its offer of proof. The court may add any other or further statement which shows the character of the evidence, the form in which it was offered, the objection made, and the ruling thereon. The court may, or at the request of a party shall, direct the making of an offer in question and answer form.
(c) Hearing of Jury. In jury cases, proceedings shall be conducted, to the extend practicable, so as to prevent inadmissible evidence from being suggested to the jury by any means, such as making statements of offers of proof or asking questions in the hearing of the jury.