 In June 2007, the junta approved a draft national security bill which gave ISOC sweeping powers to handle "new forms of threats" to the country.The ISOC revamp modelled it after the US Department of Homeland Security, and gave ISOC sweeping new powers to allow the ISOC chief to implement security measures such as searches without seeking approval from the prime minister.ISOC's mission it to suppress threats to national security, defend the monarchy, promote unity, and protect the public from harm.