To prove that a defendant committed battery on a police officer, the prosecutor must prove all of the following elements of the crime: the alleged victim was a peace officer or other protected person performing his/her duties, the defendant willfully and unlawfully touched the victim in a harmful or offensive manner, and when the defendant acted, he/she knew, or reasonably should have known, that the victim was a peace officer or other protected person engaged in the performance of his/her duties.