The Prosecutor General's Office of Azerbaijan decided to resume criminal proceedings, conditionally called the "Tartar case" in connection with the illegalities in the army in 2017.

A joint statement issued by the Prosecutor General's Office, the Interior Ministry, and the State Security Service of Azerbaijan states that in May-June 2017, due to illegal actions of some servicemen serving in the military units of the Azerbaijani Defence Ministry in Tartar, Agdam and Beylagan regions, a group of servicemen from those units and other military units interrogated persons suspected of committing illegal acts in opposition to the requirements of criminal procedure legislation.

"These individuals were subjected to physical and mental violence, torture, inhuman and degrading treatment that resulted in the death of the victims and other serious consequences” according to a joint statement from the Prosecutor General's Office, the Interior Ministry, and the State Security Service. The Azerbaijani Military Prosecutor's Office launched criminal proceedings under the relevant articles of the Criminal Code, completed the preliminary investigation of 5 criminal cases against 19 defendants, sent them to court for consideration, and the courts sentenced them to various punishments.

According to the report, the working group requested the Military Prosecutor's Office to study the criminal cases in detail, to investigate the cases of each illegal act fully, comprehensively and objectively, to identify and bring to justice all the perpetrators, and to restore and protect the violated rights of victims.

In recent years, relatives of those arrested, allegedly tortured, and arrested in connection with the "Tartar case" have held numerous rallies in front of government buildings to protest the results of the investigation and court rulings. Human rights activists and opposition political parties have issued statements calling on law enforcement agencies and the government to conduct an objective investigation.

On May 7, 2017, the Prosecutor General's Office of Azerbaijan, the State Security Service, the Ministry of Defence, and the Ministry of Internal Affairs issued a joint statement. They said a group of servicemen and civilians accused of spying for the Armenian special services had been arrested. A joint statement said that the Military Prosecutor's Office opened a criminal case under Article 274 (treason) of the Criminal Code.

On June 26, 2021, 24 members of the Parliamentary Assembly of the Council of Europe initiated an investigation into torture in Azerbaijan.

The authors of the document stressed the need to investigate the fact of large-scale torture in the "Tartar case."

"The Parliamentary Assembly is concerned about the growing number of reports of torture and ill-treatment in Azerbaijan. For example, in 2017, more than 1,000 servicemen and civilians from the frontline regions of Azerbaijan were detained on suspicion of espionage and treason. More than 200 criminal cases against them. Many of them were tortured and ill-treated. From May 1 to 17, 2017, 11 people died because of torture.

Twenty-five people were convicted of treason and sentenced to between 7 and 20 years in prison based on information obtained during interrogation under torture.

Five of the 11 people killed under torture were acquitted. Azerbaijani authorities have identified only 102 of the 135 alleged victims of torture and ill-treatment. However, no one was compensated for the damage," the document said.