San Diego communities have urged officials to keep speed limits low in conflict with state law. Now officers can’t use radar guns on those stretches of road. - The San Diego Union-Tribune

https://www.sandiegouniontribune.com/news/public-safety/story/2019-04-20/san-diego-communities-have-urged-officials-to-keep-speed-limits-low-in-conflict-with-state-law-now-officers-cant-use-radar-guns-on-those-stretches-of-road