HABIT; ROUTINE PRACTICE

(a) Admissibility. Evidence of a person’s habit or an organization’s routine practice may be admitted to prove that on a particular occasion the person or organization acted in accordance with the habit or routine practice. The court may admit this evidence regardless of whether it is corroborated or whether there was an eyewitness. (b) Method of proof. Habit or routine practice may be proved by proof of a sufficient number of instances of conduct to support a finding that the habit existed or that the practice was routine.