Thanks, this would be the particular law,
Section 362. Trespass
Whoever, entering into the immovable property belonging to the other person so as to take possession of such property in whole or in any part or entering into such property to do any act disturbing the peaceful possession of such person, shall be imprisoned not out of one year or fined not more of two thousand Baht, or both.
That said, having a law, and having it enforced are 2 different things. Hopefully it doesn't have to come to that, but we'll see if it does.