Which of the following elements is NOT part of a social investigation report?

A social investigation report is a comprehensive document that provides insights into an individual's background and circumstances, often used in the context of probation and parole cases. This report typically includes various aspects of a person's life to help determine appropriate interventions and support.

The inclusion of elements such as economic status, family background, and personal habits is essential for understanding the social context in which an individual operates. Economic status can influence a person's behavior and opportunities for rehabilitation. Family background provides insight into the individual's upbringing and potential support systems. Personal habits offer a glimpse into lifestyle choices that may impact rehabilitation and compliance with probation requirements.

In contrast, a violent criminal history, while significant in evaluating a person's risk and guiding decisions about supervision and treatment, is not traditionally categorized as part of a social investigation report. This type of historical data is more focused on previous offenses rather than current social dynamics and living conditions. Therefore, it does not fit into the holistic assessment that a social investigation seeks to provide, making it the correct choice for this question.