Questione giuridica chiave
Whether provisional detention remained proportionate despite proposed substitution measures
Decisione estratta
The detention remained proportionate because only detention could sufficiently exclude the high risk of reoffending in the circumstances.
Motivazione estratta
The proposed institutional placement was not shown to prevent alcohol/drug use or contacts with the offender's milieu; previous substitution measures had failed, and the expert report required long-term treatment for success.