If i leave the country with debts can i still be chased abroad. can i leave debts here and start fresh.?

I was left with debts when my business failed two years ago. my ex buisiness partner hasn't paid any of the debts but we're jointly and severably liable. I have the opportunity to leave england and i wont be able to pay off all my debts by then. If I go and just leave them, will i be able to have a fresh start or will i just be chased abroad. i simply cant find any more money before i'm due to leave.