I used the private investigator here as a middleman, a third party. Just like law enforcement or a data broker would be. My concern (in this argument) is less t

I used the private investigator here as a middleman, a third party. Just like law enforcement or a data broker would be. My concern (in this argument) is less that of the ethics of each single act, but rather the consequences of setting up such a service. You don't know what you are enabling.