Detective follow the interesting person to collect his (or her) daily route, addresses, contacts, meetings, etc. Photo and video evidences also include in our report. Surveillance often use to find someone, to find out interesting facts, some details about activity of company or individual and etc. Usually we providing photo and video materials.
Price - from $30 to $70 per hour, depends on situation.
Period - client pays for every hour of surveillance. How much time we need exactly - we'll understand after private conversation with client. If client have concrete task but we can't determine number of hours to solve it - we could take payment not for each hour, but amount for all task, no matter how much time we'll need.