For a violation of probation, what two conditions must be met according to the evidence standards?

The correct answer emphasizes that for a violation of probation to be established, the conditions that must be met are that the violation was willful and substantial. The term "willful" indicates that the probationer had the intention to violate the terms set forth in their probation; it highlights that the behavior was not accidental or inadvertent. The requirement for the violation to be "substantial" signifies that the breach must be serious enough to warrant consequences, indicating a significant failure to adhere to the conditions of probation. This means that not every minor infraction would constitute a violation; only those that materially affect the terms of the probation are recognized.

In contrast, the other options contain elements that do not align with the established legal standards for probation violations. For instance, terms like "legal," "intentional," "credible," and "negligent" do not adequately capture the necessary components of willfulness and substantiality that courts typically require to adjudicate a violation of probation. Understanding these distinctions is crucial for anyone working within the correctional system, ensuring that they can accurately identify and respond to true violations of probation.