A Nigerian, Osezua Osolase, 42, has been convicted of trafficking Nigerian teenage girls into Britain and using them as sex slaves after terrifying them with rituals.

According to the UK Daily Mail, Osolase was on Friday convicted at the Canterbury Crown Court of trafficking three girls aged 14, 16, and 17 and would be sentenced on Monday.

Detectives were said to have discovered evidence that at least 28 victims were smuggled in and out of Britain by Osolase over a 14-month period, earning him up to £1.5m.

The true figure of his victims could however, run into hundreds as the convict was overheard by one girl boasting he had been operating for 15 years as he tried to sell her for £60,000.

It was also discovered that Osolase was deported to Nigeria in 2007 after police caught him trying to use stolen credit cards.

But he was said to have married a mysterious German woman and returned to the country the following year with a five-year visa.

Investigators said on the surface, Osolase was a recycling worker living in a terraced house in Gravesend, Kent. But he was in fact “The British linchpin of a multi-million pound global child sex trafficking ring that used medieval ‘juju’ black magic to control its victims.”

One of the girls testified that hair was cut from her armpits by a man wearing feathers. Others were slashed with knives, forced to drink foul-smelling potions and had blood taken with syringes to ‘cast a spell’ over them.

The girls were reportedly told they would die or never bear children if they tried to escape or revealed what had happened to them.

According to the reports, one of the girls was raped and all three endured juju rituals, including one conducted by Osolase himself.

A jury was told Osolase slashed the chest of his youngest victim with a razor and rubbed black powder into her bleeding wounds.

She was ordered to take an oath of loyalty to him and believed that if she broke it she would not have children, go mad and die.

Osolase groomed her after the death of her parents by visiting her village with presents and saying she would go to school in Europe.

He, however, abducted her and said she should prepare for life as a prostitute in Italy where she would be raped by “white men who smoked drugs.”

The other two girls were said to have been terrorised by a local witchdoctor in Nigeria shortly before being flown out of the country with promises of an education and modelling work.

The 16-year-old told police she was taken to a ‘place of witchcraft’ where she was told to bathe in a ‘bloody gunk’ and wrap blood-soaked cloth around her.

The 17-year-old reportedly wept as she described how she was tricked into travelling to Britain with the promise that she would go to school. She said she was made to drink a potion laced with blood.

Police reportedly found no evidence that Osolase lived a luxury lifestyle and believe he has hidden the profits of his crimes in Nigeria.