Alleged organized crime ties In the year 2000, Acosta was accused for allegedly having ties with the drug lord
Amado Carrillo Fuentes of the
Juárez Cartel. According to
El Universal, Acosta and another Army general, Francisco Quirós Hermosillo, were accused for having ties with Carrillo Fuentes, who allegedly gave large sums of money and gifts to the two generals for protection. All of this information was attained after a
protected witness, Gustavo Tarín Chávez—who was even sent to the United States to be interrogated—declared against several members of the Juárez Cartel, naming Acosta and Quirós along with them. By the year 2005, a federal court annulled the declarations of the
military court that declared Acosta guilty of
drug trafficking. He was later released after spending 6 years and 10 months in the military prison. ;Tarín Chávez's court testimony Tarín Chávez's testimony was read aloud through a microphone in court on the first days of November 2002. Tarín Chávez said that they only person that called him that was
Amado Carrillo Fuentes, also known as
El Señor de los Cielos (Lord of the Skies), the leader of the Juárez Cartel. There were declarations that Acosta planned the arrival of Colombian aircraft loaded with narcotics. Acosta's logistic work allegedly involved the delivery of cars, money, and communication accessories to military officers who worked for Carrillo Fuentes. largely under the presidencies of
Luis Echeverría and
José López Portillo. A judge declared that Acosta was not responsible for the disappearances and dismissed the charges.
El Informador newspaper reported that Acosta was accused in 2002 for the death of 22 peasants in the 1970s, but that the charges were dropped in February 2006 after there were no juridical elements to keep him in prison. In 1968, Acosta Chaparro was part of the
Batallón Olimpia, a military-led agency that was organized to suppress the student uprisings; in the 1970s, he was promoted to the rank of colonel and was entitled to form part of a counterinsurgency group. On 30 June 2007,
La Jornada newspaper published an article of an incident where ex-guerrilla members and their families complained about Acosta's release from jail and condemned the administration of President
Felipe Calderón for doing so. In addition, Andrés Nájera, the president of the Eureka Committee in the state of Guerrero, linked Acosta to 30% of the disappearances during the "dirty war" in the 1970s. He said: The activists then said that Acosta was one of the most "ruthless" criminals in the country, because he allegedly persecuted Eloy Cisneros Guillén and Octaviano Santiago Dionisio, former members of the
Party of the Democratic Revolution (PRD) and social activists. International organizations like
Amnesty International blamed Acosta Chaparro for the disappearances of the opposition groups of the government of that time. During the 1970s, Acosta was in charge of the counterinsurgency operations in the state of Guerrero. In fact, Monroy was the mechanic of the airplane that Acosta allegedly flew to throw the bodies of the activists and guerrilla members in the ocean. According to the testimonies, military officers would make two or three plane "trips" a day, where they would throw the bodies in the ocean; 23 others were found injured.
La Barbie's Letter A letter written by the incarcerated drug baron Edgar Valdez Villarreal, alias "La Barbie," was published in the Reforma newspaper on November 28, 2012, after being shown to the journalist Anabel Hernandez. In the letter, which alleges systematic corruption among all levels of Mexico's police forces, Valdez claims that General Acosta Chaparro was sent on a mission in 2009 by President Felipe Calderon's government to persuade Mexico's various rival drug cartels—the Sinaloa Cartel, the Zetas, La Familia Michoacana, the Beltran-Leyvas, La Barbie, and the Juarez Cartel—to agree to a peace treaty. According to Valdez, Acosta Chaparro visited the leaders of all of these groups. Hernandez had interviewed the General two years earlier with the condition of anonymity, and he told her the same story. ==2010 assassination attempt==