2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/227757A model where a Dirac fermion is coupled to background dilaton field is considered to study s-wave scattering of fermion by a background dilaton black hole. It is found that the anomaly plays a dual role on information loss scenario. Some time it protects the fermion from the dangerous information loss problem and some times it itself through it up towards that danger.6 pages latex documentHigh Energy Physics - Theorytext