Hiring a good private investigator is not cheap and when you go the cheapest route for a private investigator you may not get as good of a private investigator.
However cheaper private investigators aren't always bad but usually the higher price you pay the better the private investigator and the more they are willing to do for you legally.
The cost to hire a private investigator will depend on your location and what you need the private investigator to do.
Hiring of a private investigator ranges in costs of $40.00 per hour to as much as $100.00 to $150.00 per hour.
When you hire a private investigator you pay the private investigator an hourly fee to do the investigation so you can have the private investigator stop investigating and following someone whenever you like to.