Legal Question in Civil Litigation in Missouri

Trespass is trespass. If they came in without your permission, you may sue them and call the police. If you allowed them to come in and told them not to take pictures or film, and htey did anyway, you may be able to sue for damges. but it may be hard to prove your extent of damages. The facts of each case differ the outcome. If you are still interested in pursuing a case, you should meet personally with an attorney in your area. Many offer a free or low cost initial consultation.

Good luck