Automatic systems for matching facial sketch images from the police mug shot database are very important for law enforcement agencies. These systems can help to locate or narrow down potential suspects. This paper deals the problem of face recognition through forensic sketches with focus on the eigentransformation method developed by Tang & Wang. This method is based on the Eigenface method. In this method a sketch is transformed into a photo using a global linear transformation, reducing significantly the difference between them, allowing an effective matching.