The discovery
In late July 1985, Christine Z., 24, disappeared from the home she shared with her husband in Kehrsatz, near Bern. Her body was later discovered in a freezer in the basement. The unusual crime scene and uncertainty around the timing and mechanics of the killing would become central to years of litigation and public debate.
First conviction
Investigators focused on Christine's husband, Bruno Z. In 1987, a Bern court convicted him of murder and imposed a life sentence. The case initially drew limited attention, but criticism grew after jurors and journalists questioned whether the investigation and trial had treated incriminating and exculpatory evidence fairly.
Revision and retrial
Challenges to the forensic evidence eventually led the Bernese Court of Cassation to grant revision and set aside the original judgment. Bruno Z. was released after years in custody, and a new trial began in 1993. After an extensive evidentiary review, the court acquitted him under the principle that guilt had not been proved beyond reasonable doubt.
An acquittal that became definitive
In 1994, the Bernese Court of Cassation rejected the prosecution's attempt to overturn the acquittal. The acquittal therefore remained in force. No alternative perpetrator was convicted, and the murder itself remained unsolved.
Impact on Swiss justice
The case became a reference point in discussions about forensic evidence, jury procedure, media influence and the danger of building an investigation too narrowly around one suspect. Swiss public broadcasting has repeatedly revisited it as one of the country's most important criminal-justice controversies.
Sources and further reading
Case context
The Kehrsatz case is unusual because the legal system corrected an earlier conviction without resolving the underlying homicide. Its enduring significance lies as much in the investigation and appeals as in the unanswered question of who killed Christine Z.