Add Yahoo as a preferred source to see more of our stories on Google. We've all seen movies about undercover cops and private investigators. Spying in cars, wearing disguises, using codewords – the ...

Add Yahoo as a preferred source to see more of our stories on Google. Hundreds of LAPD officers claim that releasing their photos had put them in danger because they worked undercover, but city ...

Police in Surrey, England, have launched a month-long undercover operation aimed at curbing street harassment, sending female officers jogging through known harassment hotspots" to catch catcallers in ...

Met Police officers stopped men outside a train station, only to discover they were plainclothes officers. The bizarre mishap occurred outside Homerton Overground Station in east London. A viral clip, ...