When asking yourself such questions, ask what law(s) might be broken. There are plenty I’m sure, but your PI should know exactly how to stay out of trouble. Unless when, maybe later, it comes out that he was up to shenanigans…
And no, I’m certain no justification is required to contract a PI. Imagine if there was, no one would do the job.
This motivated me to, once again, try to find “Colin”. Lowest budget movie ever I would think. 200£? It’s a zombie movie shown from the zombie’s point of view. Seems like it had a great ending, been years since I’ve watched.
https://archive.org/download/Colin.2008.Vose
Neither the MP4 nor AVI look great, but seems the MP4 is the winner. Anyone have a better copy?