Who can help me fetch hard information

Hi my name is Edwin I need getting help on how to fetch information that's not public on the internet like irs records to my soon to be search engine business? The reason why is because victims will use my search engine to help report a crime when they don't have a name including a suspect who worked for a private company that's dissolved in 2004 it will only provide first name age city state and ethnicity enough for police to find them but not enough for anyone stalking them. Can you help?