A more thorough explanation:

Definition: Initialia testimonii is a Latin term used in Scots law to refer to the preliminary examination of a witness to determine their competence to testify.

Example: Before a witness can give testimony in court, they may be subject to initialia testimonii to ensure that they are capable of providing reliable and accurate information.

Explanation: The example illustrates how initialia testimonii is used in practice. It refers to the process of questioning a witness before they give testimony to determine if they are competent to do so. This helps to ensure that the information provided is reliable and accurate.