I am afraid that under MO Statute 566.034. "1. A person commits the crime of statutory rape in the second degree if being twenty-one years of age or older, he has sexual intercourse with another person who is less than seventeen years of age.
2. Statutory rape in the second degree is a class C felony." This means that the age of consent is 17 in MO, so he is not breaking the law if the sex is consensual.
You can file a complaint with his Internal Affairs Division regarding the relationship being inappropriate based on his position of authority, but it is not a illegal for him to be having sex with her consent.
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