What term refers to an adult who is able to take care of himself?

The term "sui juris" refers to an individual who possesses the legal capacity to act on their own behalf and is not under the control of another person, such as a guardian or conservator. This designation confirms that the person is of legal age and has the mental capacity to manage their affairs independently, making decisions and taking responsibility for their own actions.

Having this understanding is important within the context of the law and bail practices, as it underscores an individual’s autonomy and their ability to engage in legal contracts, including those related to bail. This term sets the foundation for various legal rights and responsibilities that an individual can exercise without external assistance or intervention.

In contrast, the other terms do not pertain directly to an individual's capability to manage their own affairs. "Suo moto" refers to actions taken by a court on its own motion, "supersedeas" is a legal term that refers to an order that suspends the enforcement of a judgment, and "surety" involves a person or entity that takes responsibility for another's performance of an obligation, particularly in bail situations.