What event initiates the Speedy Trial Clock (STC)?

The initiation of the Speedy Trial Clock (STC) is marked by the preferral of charges against a defendant. This event signifies the formal charging process, which is crucial as it triggers the timeline for ensuring the defendant's right to a speedy trial as guaranteed by the Sixth Amendment of the U.S. Constitution. The STC begins once the defendant is officially notified of the charges, establishing a clear starting point for the prosecution to adhere to the statutory time limits.

In contrast, trial commencement refers to when the trial actually begins, which happens after the STC has already been set into motion. Similarly, confinement of the accused or their plea, while related to the trial process, do not initiate the Speedy Trial Clock. The timeline is specifically concerned with the point at which the prosecution must take action to bring the defendant to trial following the formal acknowledgment of charges. Thus, the correct choice encapsulates the essence of how the legal system prioritizes timely justice starting from the moment the accused is charged.