Immigration detention as a routine police measure: Discretionary powers in preemptive detention of noncitizens in Finland

This article discusses how administrative practices shape immigration detention policies, addressing both discretion in orders and their judicial supervision. Due to vaguely formulated legal criteria ineffective ex-post supervision, the authorities have considerable discretionary powers ordering detentions for noncompliant criminalized noncitizens. Instead of being a measure last resort, is used routine manner, with little individual assessment, enforcement removals prevention irregular migration, as well extensively crime prevention. The findings demonstrate role police main actor system Finland, significant implications formation policies.