They send fingerprints and other evidence to a lab for study. After gathering the information, they write a report for the client. Investigators may have to testify in court about their findings. Occasionally, they report criminal information to the police. Other duties include arranging lie detector tests for witnesses.
Some investigators specialize in certain areas.
For example, legal investigators specialize in cases involving the courts and lawyers. Finance investigators look into the financial standing of companies or individuals. Detectives often are hired to protect a business. They investigate vandalism, theft, shoplifting, or dishonesty by employees or customers. Detectives may watch the business in order to catch suspects in the act of harming the business.