Does the investigation firm really look into your problem, study your case carefully and provide you with detailed professional advice in all legal aspects?
In Order to have the professional advice from the investigation firm, make sure you
look for referrals. Referrals are frequently a great source of information. Ask your friends, co-workers, and the best is if you know a lawyer, they surely know private investigators or maybe private agencies. Being close to you, these people will give you trusted feedback about any private investigator they possibly know.
Check the Internet and directories for their online listings and reputation.
Search for private investigators who are licensed. Remember, if you hire an unauthorized private investigator, he may do some things which are against the law and of course will cause you troubles in return.
Check their previous work. When you interview a private investigator, ask them about their previous cases and see if any of those matches your case. The speed of the investigation will be a lot quicker and smoother of course if he already has experience on the type of work that needs to be done.
Check how comfortable are you when it comes to working to the private investigator you are interviewing. Make sure that both of you can communicate well with each other once the investigation sets out.
The traits of a successful private investigator include patience, discipline, common sense, intuition, anticipation, focus, the ability to listen, to ability to always welcome constructive criticism, and be very firm in conducting the investigation!