To become a private investigator in NY, you should be at the least 25 a long time old and also have possibly three a long time of expertise in investigations or twenty+ many years of law enforcement experience. You should also pass a NY state PI examination and obtain fingerprinted. http://www.drugoffice.gov.hk/gb/unigb/www.openlearning.com/u/isabellablake-snnemk/blog/01