A private detective’s authorities according to law are consisted of gathering information about:

• missing persons or persons hiding from the client or persons that wrote or sent anonymous letters or persons uttering slander, accusations or insults,
• persons who caused damage to the client,
• lost or stolen property,
• proofs necessary for client’s insurance, or attaining rights or benefits in court of law or other government bodies or companies and institutions,
• successfulness
• effectiveness in persons’ performance
• effectiveness and management of joint-stock companies and other legal persons