What is the first step when attempting to recover a plastic fingerprint?

The first step in recovering a plastic fingerprint is to photograph it with a scale. This initial step is crucial for several reasons. Documenting the fingerprint through photography serves as a permanent record of the evidence in its original state, which is essential for later analysis and presentation in court. Using a scale in the photograph provides a reference for size and helps ensure that any measurements taken from the photograph or later analysis can be accurately related back to the scene.

Capturing the fingerprint in its natural context also preserves the details and characteristics that may be essential for identifying the person who left the impression. Once the fingerprint is documented properly, other methods for recovery or enhancement can be employed. By focusing on the proper documentation first, investigators can maintain the integrity of the evidence throughout the investigation process.