Pretrial detention serves as a precautionary measure to ensure the defendant's presence throughout criminal proceedings. One of the grounds for pretrial detention is the risk of flight, which materializes when the defendant absconds or when specific circumstances suggest a propensity to flee. The right to pretrial detention is enshrined within the framework of the European Convention on Human Rights and Fundamental Freedoms, the Constitution of the Republic of Croatia, and the Criminal Procedure Act. This measure entails the curtailment of personal liberty, underscoring the paramount importance of adhering to the principles of proportionality and legality in its application. Alternative measures such as bail and precautionary measures serve as more lenient substitutes for pretrial detention.A substantial portion of legal scrutiny is directed towards an analysis of judicial precedents over the past triennium, with particular emphasis on judicial rationales pertaining to flight risk determinations. Common indicators of flight risk include untraceable residency, foreign citizenship, and dual nationality. Judicial determinations concerning bail and precautionary measures as viable alternatives to pretrial detention are also subject to meticulous examination.Precautionary measures aimed at forestalling flight include the confiscation of travel documents, the imposition of regular reporting requirements to competent authorities, and restrictions on the defendant's movement. Judicial practices exhibit variance, thereby necessitating case-by-case assessments. In instances of transnational flight, the issuance of international arrest warrants, European arrest warrants, and extradition proceedings may ensue.