Hhmm? Were the shirts these "informants" wore brown? Because this sounds like what happened in Germany in the mid-to late 1930s.USNews, quote:
IN WHAT WAS CERTAINLY an unconventional Father's Day message, the Police Department in Topeka, Kansas, sent out a tweet Sunday encouraging people to turn in fathers who had committed a crime or who had outstanding warrants, according to the The Kansas City Star.
"Does your child's father have warrants?" the tweet read, according to a screen shot. "Is he carrying around any drugs? Has he been committing any crimes? Want to give him a Father's Day he'll never forget? Call TPD and we'll help your family make a memory that will last a lifetime." Unquote