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The global diffusion of smartphones and tablets, exceeding traditional desktops and laptops market share, presents investigative opportunities and poses serious challenges to law enforcement agencies and forensic professionals. Traditional Digital Forensics techniques, indeed, may be no longer appropriate for timely analysis of digital devices found at the crime scene. Nevertheless, dealing with specific crimes such as murder, child abductions, missing persons, death threats, such activity may be crucial to speed up investigations. Motivated by this, the paper explores the field of Triage, a relatively new branch of Digital Forensics intended to provide investigators with actionable intelligence through digital media inspection, and describes a new interdisciplinary approach that merges Digital Forensics techniques and Machine Learning principles. The proposed Triage methodology aims at automating the …