Only certain police officers were allowed to interview members of the public under hypnosis. Hypnosis could only be carried out on witnesses and victims that gave their permission. Suspects could never be hypnotised.
The present decision means that no future hypnosis sessions will be held at the Belgian police. It's now believed that probing for details that at first sight may seem irrelevant can help to reconstruct the context of any incident more easily. In future this is the only such method that will be used to prompt the memory of witnesses and victims.