idk why ur downvoted but: the old woman tricked the second cop into thinking his colleague(the first cop) was lying about the woman have no license, stole the car, and killed someone when in reality, the woman lied about those herself. this brings the trust that the second cop has for the first cop significantly since the first cop pretty much just wasted his time. this makes the second cop believe that the woman wasn’t actually speeding, it was just another lie told by the first cop.