After a lengthy dispute, I officially resigned from my government job after I reached a settlement from being fired due to addictions to drugs. The money was good etc. I'm not at liberty to discuss the memorandum of settlement. How do I answer the question in interviews: why did you leave your previous job?

Without reviewing the agreement we cannot comment on what you are entitled to say at interviews. If you want, we can review the agreement and provide our advise provided that the agreement permits you to disclose the terms to your legal counsel. If you wish to proceed please contact our office to schedule a consultation with one of our lawyers.