Primetime can help advanced learners become more confident with fast and natural English. Listening can be difficult because the dialogue moves at around 175 words per minute, leaving little time to process each line. The vocabulary is not overly technical, though it includes enough variety to make the practice meaningful. Also, crime scenes may bring in words related to investigations, police or legal vocabulary. Some parts may require more focus, but the main story remains easy to follow. If your English is near C1/C2, this can be useful practice, especially if you start with English subtitles.