According to what test do suspects have to make clear statements that indicate they know their rights, know they're giving them up, and know the consequences of giving them up?

Question

Quizplus · Accepted Answer

The express waiver test requires suspects to make clear, unambiguous statements that they understand their rights, are voluntarily waiving them, and comprehend the potential consequences of doing so. This ensures that any waiver of rights, such as the right to remain silent or the right to an attorney, is made knowingly and voluntarily.

According to What Test Do Suspects Have to Make Clear