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High walls topped with razor wire, armed patrols in pick-up trucks and signs deterring would-be criminals from targeting properties are commonplace in South Africa.

Per capita, the country's private security industry is the fourth largest in the world and South Africans spend more than $4bn (拢3bn) a year protecting themselves and their homes.

The 麻豆官网首页入口's Vumani Mkhize has been taking a look at this growing industry.