I am not sure where you are located however, in Canada there is a section in the Criminal Code (s.494) that allows any citizen to arrest without warrant, any person they FIND COMMITTING an indictable...
Not a lot of information in that question to go on...
If they have a client, the possibilities are pretty open but can include the following:
Researching various public records and, to some extent,...
Private investigator often bill hourly rates. The rate vary on the professional, area and services offered. Private Investigators charge anywhere from $45 to $300 an hour. Some flat rates might be...
If you are looking for a career in Law Enforcement, Private Investigation is one of the interesting fields. This area is quite broad and it can range from simple form of intelligence to large scale...