Days later, moves began to dissolve the Catholic Youth League.[77] Clergy, nuns and lay leaders began to be targeted, leading to thousands of arrests over the ensuing years, often on trumped up charges of currency smuggling or "immorality".[77] Priests were watched closely and frequently denounced, arrested and sent to concentration camps.[78] From 1940, a dedicated Clergy Barracks had been established at Dachau concentration camp.[79] Intimidation of clergy was widespread.