the cafeteria workers, none of the Sodexo accounts targeted by the SEIU have unionized or requested an election vote. According to a statement from Sodexo, the SEIU engaged in a smear campaign in an effort to drive out rival labor unions that have traditionally operated in the foodservice industry as well as for general publicity. Sodexo filed a lawsuit in March 2011 under the Racketeer Influenced and Corrupt Organizations Act accusing the SEIU of "engaging in illegal tactics in its effort to unionize workers". During the trial, it was revealed that the SEIU had written and distributed a manual to its staff detailing how "outside pressure can involve jeopardizing relationships between the employer and lenders, investors, stockholders, customers, clients, patients, tenants, politicians, or others on whom the employer depends for funds." Tactics recommended include references to blackmail, extortion, accusations of racism and sexism, and targeting the homes and neighborhoods of business leaders for demonstrations. Following the court discovery of this document, the SEIU agreed to terminate their public campaign focused on Sodexo and the charges against SEIU were dropped. In May 2011, 27 University of Washington students were arrested during a sit-in at the university's administrative offices for protesting the university's concessions contract with Sodexo. Later that same month, another 13 students were arrested under similar circumstances. In April 2012, a Sodexo regional manager disrupted a student protest at the State University of New York at New Paltz by tearing up protesters' signs. Students there had organized a protest to highlight what they saw as the company's unethical treatment of workers and its lack of response to issues of sustainability. On 22 February 2013, all of the frozen beef products used by Sodexo in the UK were withdrawn following the discovery of horse DNA in a sample. The company supplies 2,300 institutions, including schools, senior citizen homes, prisons and branches of the armed forces within the UK. In August 2013, Sodexo Justice Services was criticised in an official report for subjecting a female prisoner to "cruel, inhumane and degrading treatment", which "appears to amount to torture" at HMP Bronzefield in Ashford, Surrey, UK. The woman was kept segregated from other prisoners in an "unkempt and squalid" prison cell for more than five years. In February 2019, Sodexo was criticized by the United Kingdom Ministry of Justice for failing to prevent repeated and systemic breaches of the human rights of inmates