Last seen in:
- The Times - Concise - Times Concise No 9501
- Thomas Joseph - King Feature Syndicate - Mar 11 2023
- The Times - Concise - Times Concise No 9021
- Thomas Joseph - King Feature Syndicate - Jun 19 2020
- Thomas Joseph - King Feature Syndicate - Jun 17 2019
- Thomas Joseph - King Feature Syndicate - Jul 16 2018
- Thomas Joseph - King Feature Syndicate - Feb 6 2017
- The Times - Concise - Times2 Concise 6989 - April 1, 2016
- USA Today - Dec 22 2014
- The Times - Concise - Times2 Concise 5716 - March 5, 2012
Related Clues:
- Tracking system
- Underwater detection technique
- Tracker's tool
- Submarine sensor
- Detection acronym
- Airport tracking device
- Meteorological aid
- Speeder detector
- Traffic controllers' device
- Motion detector, e.g
- Speed demon's nemesis
- Technique using beam that reflects without distortion
- On reflection, not changing system of detection
- Locating device is on a roll, revealing what's hidden
- System of detection by echoes