I don't feel like your response is especially helpful in this situation, Una, since you seem to have dismissed the concept that this chap is following the OP around her place of work. Given that Queen has reported him, that he's received a demotion and that there's an ongoing investigation, it's doubtful that she is doing this out of spite. She also mentioned that he's been doing 'inappropriate things' besides popping up like a creeper and gawking at her through windows since said restrictions have been put in place.

Please don't jump the gun and play the 'you're just jealous because he's talking to someone else' card. Women need to be believed about such things, otherwise they'll continue to feel as though they have no voice or no right to speak up. Actually, no - everyone has the right to be believed in cases like this, not just women. It's pretty improbable that someone would post here looking for advice on how to go out of their way to get some innocent dude fired from his job.

Yet for all we know this could be a pack of lies, being an internet discussion forum and all, but would you rather we dismiss everyone's problems as BS or would you rather we try to lend a hand?

From what's been said, it sounds like he's either a bit dense when it comes to knowing where he should or shouldn't be during work hours due to his restrictions, or he's waiting for something. This is a very uncomfortable and precarious situation for anyone to be in. I'd second the suggestion of asking for an escort, and keep the Director or whomever else is involved in the investigation updated about his behaviour.

If he is continuing to do something that is making you concerned for your safety or the safety of others, then by all means follow it up. People who get off on potentially stalking or harassing women need to be shut down.