Christian Diesen and Eva Diesen, formulated in the second edition of their book Abuse against women and children, Norstedts Juridik 2012, page 170:

"The suspicion that mothers, usually in connection with custody disputes, accuse the ex-partner of sexual abuse of the children (for example, related to the application for visitation rights) has forwarded a quasi-scientific theory called PAS, parental alienation syndrome. The theory, launched by the American child psychiatrist Richard Gardner (advocate for pedophilia), teaches that these mothers suffer from a mental defect that makes them alienate the children from the father at any price. Up until now this theory has hardly been used for defense in Swedish criminal cases, but in quite a number of custody cases. It must be regarded as an important cleaning task for the courts to not allow expert statements based on PAS, as the theory lacks scientific confirmation."