Dear Invaded Portlander,
To prevail on a lawsuit for invasion of privacy, plaintiff must show: (1) an intentional intrusion, physical or otherwise; (2) upon plaintiff's “private affairs or concerns”; and (3) that the intrusion would be offensive to a reasonable person.
Another general statement of the rule follows:
“One who intentionally intrudes, physically or otherwise, upon the solitude or seclusion of another or his private affairs or concerns, is subject to liability to the other for invasion of his privacy, if the intrusion would be highly offensive to a reasonable person.”
If your yard is visible to the street, you might have a tough time proving the claim. If it is an area that can be seen from numerous windows, ditto. However, if the tree-cam provides a more intrusive view, then you might have a claim. Even if it does not provide a more intrusive view, you might have a claim. The law is evolving, as is what people think is "reasonable."
It might be important, if you sue, to obtain an order at the time of filing requiring the neighbor to preserve whatever he has taped to show that you were the target, not a molehill in his own yard.
Jeff Merrick, Oregon Trial Attorney