Effectiveness of the Justice Diversion Halt-intervention

Assessed using the items from the Youth Delinquency Survey.

Assessed using official Dutch Police registration records.

Assessed using official Dutch judicial records.

Assessed using the items from the Youth Delinquency Survey.

Self-reported degree of conventional beliefs, or attitude towards delinquency, assessed using the Dutch translation of the Attitudes Towards Delinquent Behavior (ATDS) questionnaire (translated by the WODC).

The degree in which the consequences of delinquent behavior are minimized, mislabeled or seen as acceptable, assessed using the How I Think (HIT) subscale 'Minimizing/Mislabeling' using the Dutch translation ('Hoe Ik Denk (HID)).

The degree in which pressure from friends to conduct delinquent behavior is experienced, assessed using a (self-developed) Dutch translation of the Peer Pressure Scale.

The degree to which a sense of guilt, or responsibility, for the consequences for delinquent behaviour is experienced, assessed using the How I Think (HIT) subscale 'Blaming Others' using the Dutch translation ('Hoe Ik Denk' (HID)).

The degree in which the wrongdoing and/or damages are corrected, assessed using a self-developed scale consisting of four question about having a conversation with the victim, apologizing to the victim, paying for the victim's damages and correcting the damages made.

The degree in which support from the social network is experienced and the degree in which respondents experience that they can ask their social network for help or advise (for example friends and family). Assessed using the Multidimensional Scale of Perceived Social Support. Scale is translated to Dutch by the WODC.

Experienced legitimacy during the first contact with Halt (experimental and control group) and during the Halt-intervention (experimental group), assessed using a four-item scale.

Experienced treatment during the first contact with Halt (experimental and control group) and during the Halt-intervention (experimental group) by the Halt-employee, assessed using a seven-item scale.

The degree to which the information given during the first contact with Halt (experimental and control group) and during the Halt-intervention (experimental group) about the Halt-intervention is experienced as adequate and comprehensible, assessed using a self-developed six-item scale.

The degree to which participants have the feeling that they are heard during the first contact with Halt (experimental and control group) and during the Halt-intervention (experimental group), assessed using a self-developed six-item scale.

The degree to which participants experience being forced to confess the crime they committed, assessed using a self-developed three-item scale. Participants are asked (1) whether they feel that they were forced to confess their crime, (2) whether they feel it is justified that they are referred to Halt and (3) whether they feel that it is their own choice to go to Halt. These items will be presented to participants in the experimental and control group during T0 and to participants in the experimental group during T1.

The degree to which participants have access to an attorney, assessed using two self-developed questions. Participants are asked whether they had the opportunity to (1) speak to a lawyer about their offence and had the opportunity to (2) speak to a lawyer about their referral to Halt. These items will be presented to participants in the experimental and control group during T0 and to participants in the experimental group during T1.

Whether or not participants are aware of the fact that completion of the Halt-intervention results in not obtaining a criminal record (yes/no). These items will be presented to participants in the experimental and control group during T0 and to participants in the experimental group during T1.

The degree of experienced stigmatization, assessed using the four-item Stigmatisation subscale of the Re-integrative Shaming questionnaire.

The degree of experienced re-integration, assessed using the four-item Re-integration subscale of the Re-integrative Shaming questionnaire.

The degree to which risk and/or protective factors are present, assessed using the Strength and Difficulties Questionnaire (SGQ) using the Dutch translation.

Experienced problems in different domains (at home, school, alcohol, money, drugs, health, mental health, gaming) and whether their has been professional help for these problems using the ten-item scale from the Youth Delinquency Survey.

The degree in which participants have delinquent friends, assessed using a six-item scale from the Youth Delinquency Survey.

The degree of parental control, parental monitoring and parental solicitation, assessed using the Dutch translation of the Parental Monitoring Questionnaire.

The different demographical characteristics of respondents, such as gender and age.

Questionnaire is being developed.

Questionnaire is being developed.

Questionnaire is being developed.

The most recent completed type of education assessed using the registration system of the Halt-intervention. .

The type of criminal offense (e.g. shoplifting, petty theft) as registered in the registration system of the Halt-intervention.

The organisation that referred to Halt (police or truancy officer) assessed using the registration system of the Halt-intervention.

The Halt-intervention contains of different modules, such as 'Handling Anger'; 'Handling Peer Pressure'; 'Making an apology to the victim'. These modules will be assessed using the registration system of the Halt-intervention.

The Halt-intervention can be offered as a solo of as a group intervention. The different forms used are assessed using the registration system of the Halt-intervention.