In Illinois there is strict liability on the company if a supervisor or person in authority engages in sexual harassment. However if the sexual harassment if from a non-supervisor then liability doesn't attach unless the company is notified and fails to take corrective action. So what type of defenses will a company engage in once you bring a complaint of sexual harassment? The most common is that the conduct doesn't rise to the level of harassment because both parties were engaged in it. This is also known as consent by the victim. The company will usually show an email or text message that shows some friendly comment in an attempt to prove their theory. Remember if the person is your supervisor of course you may have friendly comments to him, are you suppose to say unfriendly things to him?
The second most common defense is that the conduct really doesn't rise to the level of sexual harassment. So the company will say, yes the conduct was inappropriate but it wasn't harsh enough to warrant a sexual harassment complaint. The third defense is that the employee is not a good worker and is just using the sexual harassment charge as a way of diverting attention away from herself. This is the defense where the victim usually gets terminated based on some trumped up charge. This also allows the employee to file an additional complaint of retaliation. You were late to work three times or you made a mistake on your work. Of course other employees missed the same amount of work and they didn't get fired. If this happens to you, call an employment lawyer and protect your rights.