No trespassing signs and a registered letter to him letting him know if he steps foot past the signs the Popo will be called?
This should be step 1.^
Step 2 should be check with local PD to see if they also require a letter to be sent to the PD, authorizing them to remove trespassers from your property. Some PD's will not remove individuals from private property if they do not have that letter on file. Why? I have no idea.
Step 3. FAFO.
Also, this advice is what I would give someone in my locality. It does not apply to anyone outside of my locality. I would advise you seek professional legal assistance, I am not a lawyer and do not take responsibility for anyone's actions based on what I have stated here.
