In all honesty I could not say if a PO box is more risky than ordering to your home, in the eyes of the law they would probably be viewed precisely the same. My unqualified subjective assumption though would be a PO box is more risky given the chances of someone inadvertently sending you drugs in the mail would be exponentially less to a PO box than your home address if you were put into a situation where you had to deny all knowledge. When you combine that with the CCTV issue not being a factor at home if you really had to go that route then I'd use the home address over a PO box registered in your real credentials. But again, both those options are fr from desirable, get an anonymous drop arrangement.