Legal Constraints on the Indeterminate Control of ‘Dangerous’ Sex Offenders in the Community: The Dutch Perspective

In the Netherlands, the legal possibilities for post-custodial supervision have been extended considerably in recent years. A currently passed law aims to further increase these possibilities specifically for dangerous (sex) offenders. This law consists of three separate parts that may all result in lifelong supervision. In the first two parts, the supervision is embedded in the conditional release after either a prison sentence or the safety measure ‘ter beschikking stelling’ (TBS). This paper focuses on the third part of the law, which introduces an independent supervisory safety measure as a preventive continuation of both a prison sentence and the TBS measure. Inevitably, this new independent sanction raises questions about legitimacy and necessity, on which this paper reflects from a human rights perspective. Against the background of the existing Dutch penal law system, the content of the law is thoroughly assessed in view of the legal framework of the Council of Europe and the legal principles of proportionality and less restrictive means. In the end, we conclude that the supervisory safety measure is not legitimate nor necessary (yet). Apart from the current lack of (empirical evidence of) necessity, we state that there is a real possibility of an infringement of Article 5(4) ECHR and Article 7 ECHR, a lack of legitimising supervision ‘gaps’ in the existing penal law system, and finally a lack of clear legal criteria. Regardless of the potential severity of violent (sex) offenses, to simply justify this supervisory safety measure on the basis of ‘better safe than sorry’ is not enough.