According to accounts by Kristin Enmark, one of the hostages, the police were acting incompetently, with little care for the hostages' safety. This forced the hostages to negotiate for their lives and releases with the robbers on their own. In the process, the hostages saw the robbers behaving more rationally than the police negotiators and subsequently developed a deep distrust towards the latter. Enmark had criticized Bejerot specifically for endangering their lives by behaving aggressively and agitating the captors. She had criticized the police for pointing guns at the convicts while the hostages were in the line of fire, and she had told news outlets that one of the captors tried to protect the hostages from being caught in the crossfire. She was also critical of prime minister Olof Palme, as she had negotiated with the captors for freedom, but the prime minister told her that she would have to content herself with dying at her post rather than Palme giving in to the captors' demands. Ultimately, Enmark explained she was more afraid of the police, whose attitude seemed to be a much larger, direct threat to her life than the robbers.

Nils Bejerot, a Swedish criminologist and psychiatrist, invented the term [Stockholm Syndrome] after the Stockholm police asked him for assistance with analyzing the victims' reactions to the 1973 bank robbery and their status as hostages.