"Unlike other ministries where witches and wizards are beaten or stoned to death, Liberty is the only Ministry that shows mercy to witches." So boast the Liberty Foundation Gospel Ministries, whose leader, Helen Ukpabio, is claimed to be one of Nigeria's leading 'deliverers' of witches - ministering to up to a thousand at a time.

Humanist campaigner Leo Igwe and other rational-minded people in West Africa take a rather dim view of branding children 'witches', and claim that in many cases deliverance is far from the serene and gentle experience it is claimed to be. According to Igwe and charities working in the region, children "are taken to churches where they are subjected to inhumane and degrading torture in the name of 'exorcism'. They are chained, starved, hacked with machetes, lynched or murdered in cold blood." Some are apparently bathed in acid.

Criticizing these churches is not a great idea if you value a hassle-free life. In 2009 around 200 of Ukpabio's Liberty followers stormed a meeting of humanists as Igwe prepared to speak, bringing the event to an abrupt and violent end. Fortunately the police were called and intervened, but Liberty immediately sued for $1.3m dollars, apparently incensed that a meeting critical of their activities was allowed by the authorities to go ahead. The case was swiftly dismissed by Justice P.J. Nneke at the Federal High Court in Calabar.

Unfortunately the authorities aren't always on the right side. Religious groups and powerful individuals can wield significant power and influence, especially in local communities, and even senior police officers and lawmakers may share their belief in witchcraft.

Regional leader Governor Akpabio recently caused alarm when - in spite of apparently taking steps to tackle the child witch issue - he abruptly ordered the arrest of officials working for NGOs like Stepping Stones Nigeria who are fighting child abuse in the region.

This was supposedly due to allegations of fraud, but NGOs have been successful in bringing the problem of child abuse to the attention of international media like CNN, and the Governor reacted badly to these reports, declaring them to be "part of the media propaganda against the state" and insisting that he had already resolved the problem. The suspicion of many campaigners is that those bringing attention to the problem may be seen as an inconvenience, an embarrassment, and a challenge to his authority.

No evidence of any fraud has been put forward, but Liberty's website contains an example of the sorts of smears and allegations that have been circulating against NGOs in Nigeria:

"Be informed that some organizations that don't believe in the existence of God called "HUMANIST" have formed organisations in the name of helping the Helpless Child of Africa from being molested. Stepping stone Nigeria is one of such Organisations, it has been investigated by the Nigerian Police and discovered that "Stepping stone Nigeria" is not REGISTERED anywhere in the world. It is used as an Internet SCAM to extort money from the people who are in sympathy with clips of tortured children by some wicked parents not necessaryingly on account of witchcraft. As at June ending Stepping stone Nigeria has made from the public fraudulently the sum of about One Million, Two Hundred Thousand Pounds sterling (£1.2M)"

The allegations are of course nonsense: in reality Stepping Stones are registered with the Charity Commission in the UK, and detailed accounts are filed there and posted on their own website.

Leo Igwe was due to give evidence to the Akwa-Ibom State Commission of Inquiry into Witchcraft Accusations and Child Rights Abuses today, but found himself arrested and allegedly beaten before being released without charge. He described his ordeal to Sahara Reporters:

"It was a terrible encounter and it was premeditated going by the way they executed the plot to hold me accountable for "kidnapping;" my hands were tied behind me and they beat me mercilessly. [...] My head was swollen and I kept massaging it so that it does not become permanent; from Tuesday night to this morning I was kept incommunicado and had no contact with either my family or my lawyers."

The arrest comes straight after a series of similar incidents: Leo and his father were arrested on the 5th January, and his brother was taken into custody by the state security service a few days later. Regular arrests have become a feature of life for Leo and his family for some years, and campaigners regard them as a pattern of harassment related to his campaigning, and his pursuit of a powerful man living locally who is alleged to have raped a young girl.

Leo Igwe will continue to fight for the children of Nigeria, while the International Humanist and Ethical Union are putting pressure on regional authorities to try and bring an end to the arrests. Stepping Stones Nigeria have continue their work in the country in spite of the threat of arrest. All three deserve a lot of support.