The Regulation of Investigatory Powers Act 2000 (c.23) (RIP or RIPA) is an Act of the Parliament of the United Kingdom, regulating the powers of public bodies to carry out surveillance and investigation, and covering the interception of communications.oday I have written to all chief constables and directed them under section 58 (1) of the Regulation of Investigatory Powers Act (Ripa) to provide me with full details of all investigations that have used Ripa powers to acquire communications data to identify journalistic sources.