A Trustee is a person who takes responsibility for managing money or assets in an official capacity. In the context of Trust Deeds, a licensed Insolvency Practitioner will take on the role of Trustee, and they will administer the Scottish Trust Deed on your behalf.
The Trustee will become the liaison between you and your creditors. As long as you make the agreed reduced monthly payments, the people you owe money to (your creditors) can no longer call you up, email you or contact you directly to chase the repayment of the money you owe to them.
In a Debt Arrangement Scheme, the equivalent role is performed by a fully trained and approved Money Adviser.