Wuppertal Sharia Police incident
Hardline Salafist Muslims patrolled the streets of Wuppertal, a city in the west of Germany, to "influence and recruit young people", according to local police. Dressed in bright orange reflective vests with "Shariah Police" printed on the back, the male patrollers loitered around discotheques and gambling houses, telling passers-by to refrain from gambling and alcohol.
Source: Wikipedia — Wuppertal Sharia Police incident (CC BY-SA 4.0)