North Korea is carrying out a widespread crackdown on everything from wedding dresses to slang as it seeks to counter the South's influence.
This was revealed in a report released by South Korea's Unification Ministry - which is based on the testimonies of hundreds of defectors.
It includes the case of a 22-year-old who was executed after admitting listening to South Korean music and distributing films, first reported by the BBC last year.
North Korea described last year's report as slander and fabrication, but has yet to respond to the new document.
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