In the Evidence Processing Room of the Santa Ana,California,Police Department's forensics laboratory,a technician examines an envelope for latent fingerprints using ninhydrin analysis. The process produces a purple colour as proteins in fingerprints react with ninhydrin. She wears a face mask to protect herself from chemical fumes | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Grant, Spencer |
Bildgröße: | 2912 px × 4368 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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