Derek is perhaps best known for being part of the original Most Haunted team, remaining with the programme for over 5 series, where he investigated numerous haunted locations in Britain and around the world.
What a lot of people may not know is that before he rose to fame as the country's most popular psychic, he was in fact a footballer, playing for Liverpool, Glentoran, Stockport, Wrexham and USC Lion.
In the first part of our interview, Derek discusses his early development as a medium, how he shared his gift with Emlyn Hughes while at the Anfield club, and what happened as a result.
We also find out what his most memorable game as a player was, how he became aware of his gift of mediumship, and what the reaction of Liverpool legends Bill Shankly and Bob Paisley was when he told them of his gift.
This is the first part of four. The second part will be published on Sunday 15th July 2012 at 1pm.
If you have any comments on this interview, we would love to read them and you can leave your thoughts using the comments system below and for the latest news and tour dates, you can check out Derek's website, Facebook page or follow him on Twitter.
Also, if you have seen Derek live, we would love to read your reviews of the performances. Did you receive a message from the spirit world or was your opinion changed as a result of seeing him live? We'd love to know.