Forensic facial reconstruction.

A few of the fields of forensic science are

Ballistics- anything using explosives or weapons

Botany- study of plants

Anthropology- bones

Facial reconstruction- self explanatory

Reconstruction of the wall has begun.

The reconstruction of the building cost millions.

The facial reconstruction was a success.

A forensic anthropologist can reconstruct a face on a skull by using facial approximation techniques, such as tissue depth markers or computer software programs. By taking measurements of the skull and estimating the thickness of facial tissue at key points, they can create a facial reconstruction that approximates the individual's appearance. Soft tissue depth data and population-specific standards are also used to inform the process.

well normaly you would have the forensic draw the picture based on the eye-witness's discription but it would be called a facial reconstruction if you model it and sometimes even if you drawl it.