policies and protocols for racism and discrimination. They presented their findings to the Austin city council in March 2021. Social media Kroll's business and investigations practice provides background checks on Instagram influencers, using publicly-accessible online information to prevent them being 'cancelled' for problematic or potentially disreputable behaviour (e.g. tweets which includes offensive language or content). Other work An agreement between the government of Ghana and Kroll for the firm to retrieve assets and investigate wrongdoings by previous appointments was subject to two lawsuits in 2020, challenging the constitutionality of the agreement. Both lawsuits were dropped in April 2021. Kroll was hired in 2018 by Michigan State University during the Larry Nassar case to investigate over 170 sexual assault cases at the university. Notable cases The Heroin Trail case In 1987, in the prominent First Amendment case over The Heroin Trail stories in New York Newsday, attorney Floyd Abrams enlisted Kroll's help to find an eyewitness: "But was it conceivable that we could come up with an eyewitness who could be of help? I called Jules Kroll, the CEO of Kroll Associates, the nation's most acclaimed investigative firm, to ask him if he could inquire, through the extensive range of former law enforcement officials employed by him, whether Karaduman was known to be a drug trafficker in Istanbul." Two weeks into the trial Kroll produced Faraculah Arras, who was prepared to testify he was involved in one of Karaduman's drug deals. "I was stunned," recalled Abrams. Abrams used Kroll again in 1998 to investigate claims by CNN's Newsstand documentary that sarin nerve gas had been used in Vietnam in 1970 as part of Operation Tailwind. The John Fredriksen oil theft case Kroll assisted in the trial of Norwegian shipping tycoon John Fredriksen at the end of the 1980s. Brazilian privatization Fernando Henrique Cardoso, Daniel Dantas, the company in question, André Esteves, Roberto Mangabeira Unger and Dario Messer signed a schedule agreement to privatize Brazilian state-owned enterprises. WTC and Sears Tower security Kroll were responsible for revamping security at the World Trade Center after the 1993 World Trade Center bombing. They also took on responsibility for security at Chicago's Sears Tower following the September 11, 2001 attacks. Just prior to the September 11 attacks, Kroll Inc., under the guidance of Jerome Hauer, the managing director of their Crisis and Consulting Management Group, hired former FBI special investigator John P. O'Neill, who specialized