Hi, I left UK at the end of 2012. I had some small debts that I couldn't pay before leaving I lost my job and had no money. My total debt was around $900-1000. Around £500 Credit card Bills, £350 mobile phone contract payment and £100-150 council tax. I am travelling in the next few months and will have an 8 hour layover in Heathrow. I thought this would be a good chance to have a quick meetup with my old friends since we haven't met in so long. Since I want to meet my friends during the layover, I'll have to come out of the airport for which I might need a visa. I am concerned whether I will get in any kind of trouble in the airport due to my previous bad debt. Will they detain me or stop me? Will they chase me even in my current country of residence?