Objectives of ETIAS
Article 4
By supporting the competent authorities of the Member States, ETIAS shall: (a) contribute to a high level of security by providing for a thorough security risk assessment of applicants, prior to their arrival at external border crossing points, in order to determine whether there are factual indications or reasonable grounds based on factual indications to conclude that the presence of the person on the territory of the Member States poses a security risk; (b) contribute to the prevention of illegal immigration by providing for an illegal immigration risk assessment of applicants prior to their arrival at external border crossing points; (c) contribute to the protection of public health by providing for an assessment of whether the applicant poses a high epidemic risk within the meaning of point 8 of Article 3(1) prior to his or her arrival at external border crossing points; (d) enhance the effectiveness of border checks; (e) support the objectives of SIS related to alerts on third-country nationals subject to a refusal of entry and stay, alerts on persons wanted for arrest for surrender purposes or extradition purposes, alerts on missing persons, alerts on persons sought to assist with a judicial procedure and alerts on persons for discreet checks or specific checks; (f) contribute to the prevention, detection and investigation of terrorist offences or of other serious criminal offences.