Under Civ. Code, 1714.9, the firefighter rule does not apply to acts that a defendant takes after knowing a firefighter or policeman is present that increase the risk of harm to that person. The statute does not require a showing that the defendant increased the risk of harm beyond that inherent in the firefighter’s or policeman’s line of work. Hence, it was error for defendant’s counsel, in closing argument, to urge the jury to deny plaintiff’s claim because defendant’s act of disobeying plaintiff’s instructions at the scene of the accident didn’t increase the risk of harm beyond that inherent in his duties as a firefighter. When plaintiff timely objected, the trial court gave an even more confusing admonition and jury instruction. Accordingly, judgment for defendant is reversed.