Forensic Artists can offer composite art, demonstrative evidence, age progression, post-mortem reconstruction, courtroom drawings, facial approximations from the skull and image modification as tools to the investigator. They possess the ability to conduct a cognitive interview and relate to a victim or witness.
The composite drawings produced are not portraits. Given the circumstances from which they are created, there’s no way they could be. They are more of a technical illustration as opposed to fine art. They’re meant to bring together the victim’s and/or witness’ recollection of the suspect (also utilizing their recognition with various tools) and create a general resemblance.