The report was released on Wednesday, hours after the head of Denmark's Security and Intelligence Service (PET), Jens Madsen, announced his resignation.
In mid-February, Copenhagen was hit by two terrorist attacks, when an Islamist gunman opened fire at a free speech seminar and later at a synagogue. Two civilians and the suspect were killed, and six police officers wounded.
The report found that the police were not quick enough in responding to the incident at the synagogue; taking four hours for the officers to establish their presence at the scene. In addition, the report indicates that police offered poor protection to the victim, who was eventually shot at the synagogue.
According to the Justice Ministry, although the authorities were adequately prepared for the attacks, there were certain areas "where things could have gone better.”
Danish intelligence was reportedly informed that the suspect, 22-year-old Omar El-Hussein, became radicalized while serving a prison term. Despite this, PET was not notified of Hussein’s release from prison on January 31.
Following the deadly attacks, Copenhagen police stepped up security measures in the country, focusing on preventing extremists attacks.