The best source for private investigator training is at private investigator academy or at a local university that has the program. Those are the best sources.
After the training, you should focus yourself with getting a job. Since you got private investigator training, you might become a police investigator.
When you need to find out where you can get private investigator training, the best place to look would be an online university. They will list the locations, and lots of information about their private investigator training courses.
Before becoming a private investigator a person should take Private Investigator Training to earn a Certificate in Private Investigation in order to learn the appropriate skills needed.
Try academies or institutes run by private investigators.They know better about what training a private investigator should possess. Or find if the sponsoring company is still active in the industry and choose it.
There are several places you can study to become a private investigator. One such place is the Detective Training Institute - why not visit their website: www.detectivetraining.com
Training to be a Private Investigator requires an individual to attend a Basic Private Investigator Training Course of a minimum of 50 hours. This can be a classroom-based or web-based course. Upon completion of the course the individual will be provided with a completion number with which they will use to register for the licensing exam.
Some states don't require a license but in the states that do you have to pass a test. Take a training course!
Prior experience in the field is always a plus in the area of private investigators. No formal experience is required however to simply become a private investigator.
Hire a Private Investigator in the UK
Becoming a private investigator is a long path, make sure that you really want to become one before starting. This website may help you to make your decision: http://www.nig.co.uk/Investigator-Training-and-Job-Opportunities.aspx
If by investigator you mean a private investigator, you do not need any particular qualifications. A lot of retired policemen tend to become private investigator, so some skills in detection would be needed.
For myself I took a Private Investigators course,some people have previous Law Enforcement experience but it is not a requirement to be a Private Investigator a good way to start out is get some experience in the field, go to a Private Investigator Company, get hired ,pass a background test,and meet all the requirements the state delegates.