Is it possible for one to prevent a private detective from accessing his/her personal/financial info?

What techniques would a private detective use to gain access to the info?

What techniques can a private detective use with the person’s socail security number to gain access to the info?

If the person is enrolled in an indentity protection program, will the identity protection program stop the private detective?

Also list the possible points of access for the private detective, and ways to prevent access.

What kind of education path that i need to become a detective?

I am planning on becoming a police officer in Texas. How do I go about from being a police officer to a homicide or **** detective? Does this job translate into your home life, and how does one prepare for it? Has anyone had experience in being a police officer? Thank you.
Thanks everyone.

And Mikey, I didn’t really appreciate the sarcastic tone there. You know what I meant. I guess 20 years in law enforcement can do that to a man.