| Clue | Source | Date |
|---|---|---|
| Half-silvened glass panel used for secret observation (3-3,6) | ||
| Feature of a police interrogation room (2 wds.) | ||
| Newspaper for traffic cops? | The Washington Post | 13 Dec 2020 |
| Newspaper for traffic cops? | LA Times Daily | 13 Dec 2020 |
| Interrogation room feature | Eugene Sheffer | 11 Jun 2018 |