Professional Investigations have specialized into fields, just as many professional organizations have done. We will explore the different professionals by written documentation as well as interviews in practioners in the field.
Private detectives and investigators often specialize. Those who focus on intellectual property theft, for example, investigate and document acts of piracy, help clients stop illegal activity, and provide intelligence for prosecution and civil action. Other investigators specialize in developing financial profiles and asset searches. Their reports reflect information gathered through interviews, investigation and surveillance, and research, including review of public documents.
Computer forensic investigators specialize in recovering, analyzing, and presenting data from computers for use in investigations or as evidence. They determine the details of intrusions into computer systems, recover data from encrypted or erased files, and recover e-mails and deleted passwords.
Legal investigators assist in preparing criminal defenses, locating witnesses, serving legal documents, interviewing police and prospective witnesses, and gathering and reviewing evidence. Legal investigators also may collect information on the parties to the litigation, take photographs, testify in court, and assemble evidence and reports for trials. They often work for law firms or lawyers.
Corporate investigators conduct internal and external investigations for corporations. In internal investigations, they may investigate drug use in the workplace, ensure that expense accounts are not abused, or determine whether employees are stealing merchandise or information. External investigations attempt to thwart criminal schemes from outside the corporation, such as fraudulent billing by a supplier.
Financial investigators may be hired to develop confidential financial profiles of individuals or companies that are prospective parties to large financial transactions. These investigators often are certified public accountants (CPAs) who work closely with investment bankers and other accountants. They might also search for assets in order to recover damages awarded by a court in fraud or theft cases.
Detectives who work for retail stores or hotels are responsible for controlling losses and protecting assets. Store detectives, also known as loss prevention agents, safeguard the assets of retail stores by apprehending anyone attempting to steal merchandise or destroy store property. They prevent theft by shoplifters, vendor representatives, delivery personnel and even store employees. Store detectives also conduct periodic inspections of stock areas, dressing rooms, and restrooms, and sometimes assist in opening and closing the store. They may prepare loss prevention and security reports for management and testify in court against people they apprehend. Hotel detectives protect guests of the establishment from theft of their belongings and preserve order in hotel restaurants and bars. They also may keep undesirable individuals, such as known thieves, off the premises. http://www.bls.gov/oco/ocos157.htm#nature