The correct answer to this open question is the following.
Unfortunately, you did not attach the passage. Without the passage, we do not know what is the information included in it.
However, trying to be of some help, we can comment on the following.
The role of a forensic artist is to sketch the faces of suspects. These forensic artists talk to victims of a crime to interpret the description of suspects and draw the most precise face so police can investigate the case. They only base their sketches on the description of the witnesses or the victims. That is why their work is of the utmost importance for police investigations.
So as part of its preparation, it is recommended that they study not only psychology art and advanced sketch techniques, but interviewing procedures, and law enforcement.
Many times, police can catch the suspect and send it to jail due to the masterful job of a forensic artist and his sketches.