If you're trespassing in the role of a journalist, it will greatly behoove you for your journalism to strongly take the point of view favoring those who are trespassed upon.

That's the only way you can hope to obtain "retroactive authorization to have been there" from the property owners. (I.e. they have the charges dropped.)

You're likely not going to get that from the property owners if you side with the trespassers; then you're as good as one of them as far as they are concerned.