Many traps associated with a scientific protocol will likely have a small tag or explainer with contact info on them or perhaps research permit info.
In most cases, it’s unlikely that a few traps are going to have a large population level impact, so I wouldn’t bother the traps. If there is a tag, you could contact the person to ask about the study.
If you’re concerned about them and there is no info, the first place I would check would be with whoever owns/administrates the land. If it’s private land, the landowner might want to know if someone is trapping on their land without permission. If public, the admin/rangers/whoever should know about all scientific studies or control measures occurring with permission. If the activity it unpermitted, they’ll want to know as well.