ABOUT US

We know that investigation matters handled by Private Detectives are most often sensitive in nature. The key to the success of 1-1 Advanced Investigation Referral is in identifying the best private detective agency for you in every area of the United States.

It is our experience that the most professional and reliable private investigators are those that take the time and effort to join a professional investigative association. Therefore we target private investigators who are members of professional associations.

The core group of our investigators are members of the National Association of Licensed Investigators. (NALI) This organization, founded in 1972, maintains the highest standards for membership, including personal recommendations by three licensed private investigators, who are members in good standing, as a prerequisite to membership. This kind of screening guarantees you the highest level of professionalism for your investigation project.