Age Progression or Regression
Because age is not genetically encoded, Snapshot predicts subjects at 25 years of age by default. When investigators have reason to believe a person of interest is younger or older, our artists can adjust a composite accordingly, based on standard aging principles.
Composites Based on Eyewitness Account
Our forensic artists are trained to conduct cognitive interviews and produce composites solely from an eyewitness account. The interview and composite production is conducted online with screen sharing technology, so eyewitnesses do not have to travel. When DNA is available for the same person of interest as seen by the eyewitness, Snapshot can provide a corresponding composite from “the genetic witness” perspective. Our artists can combine a composite from an eyewitness account with one produced by Snapshot to produce a single, highly accurate rendering that contains the best that both sources of information can offer.
In some instances, descriptive information about a subject’s accessories or distinguishing features is available that can be used to enhance a Snapshot composite. For example, a surveillance camera image may be too grainy for identification, but nevertheless suggestive that a suspect has facial hair. Similarly, an eyewitness may recall a tattoo or scar, even though they were too traumatized to remember much else. In such cases, our forensic artists can accessorize a Snapshot composite to include all available descriptive information about a subject.
Body Mass Index (BMI) Alteration
Besides the effects of aging, changes in BMI have among the largest effects on appearance. By default, Snapshot produces composites assuming the subject has a BMI of 22, which is considered average. When information is available that suggests a subject has a lower or higher than average BMI, forensic artists can appropriately alter the BMI of a Snapshot composite.
When unidentified human remains include a skull, our forensic artists can perform facial reconstruction, literally building up the corresponding face using knowledge of facial musculature and soft tissues. Although facial features cannot be perfectly inferred from a skull, bone structure can be immensely informative about the shape of an individual’s face. Snapshot predicts exterior face morphology, but when a skull is available, a forensic artist can use it to confirm or enhance a Snapshot composite based on facial reconstruction.