Alcance
                            This document establishes:—    principles and methods for the performance assessment of presentation attack detection (PAD) mechanisms;—    reporting of testing results from evaluations of PAD mechanisms; and—    a classification of known attack types (Annex A).Outside the scope are:—    standardization of specific PAD mechanisms;—    detailed information about countermeasures (i.e. anti-spoofing techniques), algorithms or sensors; and—    overall system-level security or vulnerability assessment.The attacks considered in this document take place at the biometric capture device during presentation. Any other attacks are considered outside the scope of this document.