少年警訊( 簡稱少訊) 計劃於一九七四年七月由前警察公共關係科總警司凌基理先生創辦。在過去多年以來，少年警訊會員人數快速增長。直至二零一三年一月, 會員人數己超過二十萬，成為世界上與警方有緊密聯繫的最龐大青少年組織之一。

Junior Police Call Scheme (JPC) was launched by the former Chief Superintendent of Police Public Relations Branch (PPRB), Mr. Rennie, in 1974. With its membership expanding rapidly over the years, JPC has become one of the largest youth organizations in the world with strong Police ties.