After hearing how children were being trafficked for 'cybersex', Derek Seeker, whose name has been changed to protect him in his work, moved country to rescue children and catch perpetrators.
He now works with International Justice Mission (IJM), the largest anti-slavery organisation in the world, specifically to combat this type of abusive cybersex - which is when children are sexually abused by adults or other children in front of a webcam for paying customers around the world.
One day in church Derek - who was working as a policeman in California - was challenged.
"I started hearing about the work of IJM and the heart of God for justice and to protect the oppressed and it seemed like a gap in my life," he said.
"I remember specifically one time the pastor asked the question, 'if this was your child who was being trafficked what would you do?' and I was really impacted and I knew that I would do anything."
He works alongside the law enforcement in the Philippines and is embedded with the police who receive referrals from international law enforcement on cases where predators or child sex offenders in western counties are abusing kids online via a live web cam.
He went on to say: "They'll transfer money to the Philippines and with the growth of the internet they now have access to vulnerable children in developing countries."
Derek explained how his faith motivated him.
"As a believer who God has given these skills, I feel an obligation to protect them and bring justice.
"We pray every morning and we spend time in stillness praying for the victims and that we would see God's redemption in their lives."
Listing prayer points, he asked: "For God to guard our hearts and minds in this - on a regular basis we're exposed to just some horrible abuse stories and images and videos ... and secondly that God would raise up qualified and passionate police officers in the Philippines."
In work that can often seem incredibly dark, he described the successes and said: "Last year we had 32 operations and rescued 100 children".
He also described the story of a 15-year-old girl: "She'd been abused since she was nine by her own mother, but the great news was when we rescued her she told us that she'd been praying that God would send someone to rescue her and this was the best day of her life and that's what keeps us going"
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