There are many branches in which a detective can contemplate based on their background and training. One can specialize in homicide, robbery, burglary, auto theft, organized crimes, finding missing person/s, juvenile crime, corporate crimes and many other private works. Most of investigator's work is now done at a computer because of the Internet, and that should reflect within their fees. Upon having clearly outlined the job taking place, a respected investigator will assess what their fees are or offer a pretty sound estimate. Their fees will include everything from their time spent to gasoline charges or paperwork processing. Also ask about fees associated should there be a court appearance necessary. Finally, The corporate work is very different from the regular field of an investigator. It is best to hire an agency or officer who is qualified and experienced in this line of work. Such a person will know the latest methods and techniques of solving high profile cases and can be trusted with the documents and details of the organization. It would be of immense help if the person in charge is familiar with the laws regarding corporate and business.be described as a good judge of character which means meeting a possible investigator face-to-face. Do not hire one on the telephone. A person's demeanor, eye-to-eye contact and various body gestures will tell you a whole lot about them. Whomever you hire is going to be delving into your most personal business and trust and luxury level is essential.