![Infographic] Police Codes: A Glossary | VWU Online](https://online.vwu.edu/wp-content/uploads/2018/05/201805-PoliceCodes-infographic-VWU1.png "Infographic] Police Codes: A Glossary | VWU Online")
Infographic] Police Codes: A Glossary | VWU Online
Eric Tendian on Twitter: "The first Chicago Police radio zone has gone encrypted: CPD Zone 9 is now encrypted and cannot be listened to with any scanner. OEMC provides a feed however,
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