The plaintiffs in that case alleged that as mayor of Beijing, Liu had control over the local police, who were in turn alleged to have tortured the plaintiffs with beatings, electric shock, and forced feedings through tubes inserted through the plaintiffs' noses.
Liu had control over the local police. This was as mayor of Beijing. This was what the plaintiffs in that case alleged. The local police were in turn. This turn was alleged to have tortured the plaintiffs with beatings and forced feedings through tubes. These tubes were inserted through the plaintiffs' noses. Beatings were electric shock.