laillisuusperiaate
Laillisuusperiaate, or the principle of legality, is a fundamental doctrine in Finnish constitutional and administrative law. It holds that public authorities may exercise power only when they are authorized by law and within the limits set by law. In practice this means that administrative decisions, police actions, and other state activities must have an explicit legal basis, and authorities cannot create rights or impose obligations outside of what the law provides. The principle aims to prevent arbitrary or discretionary state action and to secure predictability and legal certainty for citizens.
Origins and scope: The laillisuusperiaate is rooted in the rule of law (oikeusvaltioperiaate) and is reflected
Relation to other principles: It intersects with other constitutional values such as proportionality, necessity, and proportional
Impact and enforcement: The laillisuusperiaate serves as a basis for judicial review of administrative decisions. Courts
Overall, laillisuusperiaate is a central safeguard in Finland's constitutional framework, ensuring that public authority operates within