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2. Police radio - Wikipedia

   en.wikipedia.org/wiki/Police_radio

   Police radio. Police radio is a radio system used by police and other law enforcement agencies to communicate with one another. Police radio systems almost always use two-way radio systems to allow for communications between police officers and dispatchers . Most modern police radio systems are encrypted, and many jurisdictions have made ...

3. Radio scanner - Wikipedia

   en.wikipedia.org/wiki/Radio_scanner

   A scanner (also referred to as a radio scanner) is a radio receiver that can automatically tune, or scan, two or more discrete frequencies, stopping when it finds a signal on one of them and then continuing to scan other frequencies when the initial transmission ceases. The term scanner generally refers to a communications receiver that is ...

4. Police code - Wikipedia

   en.wikipedia.org/wiki/Police_code

   Police code. A police code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems in the United States. Examples of police codes include "10 codes" (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes, or ...

5. Amid protests, US police scanner apps and others saw record ...

   techcrunch.com/2020/06/01/amid-protests-u-s...

   The Police Scanner app saw the most downloads of the group, with 19,000+ on Friday, nearly 24,000 on Saturday and 35,700+ on Sunday. However, the daily active user count for the Scanner Radio ...

6. 'Reverse' searches: The sneaky ways that police tap tech ...

   techcrunch.com/2024/04/02/reverse-searches...

   U.S. police departments are increasingly relying on a controversial surveillance practice to demand large amounts of users’ data from tech companies, with the aim of identifying criminal suspects.

7. Police license plate readers are still exposed on the internet

   techcrunch.com/2019/01/22/police-alpr-license...

   Darius Freamon, a security researcher, was one of the first to find police ALPR cameras in 2014 on Shodan, a search engine for exposed databases and devices. Freamon found one then-popular model ...