Mr. Clarkson is licensed to practice in Massachusetts and regularly appears in state and federal courts and before administrative agencies across the country.  In his work with Ogletree Deakins, Mr. Clarkson litigates cases and counsels large and small private for-profit and not-for-profit employers concerning discrimination, harassment, retaliation, non-compete, wage and hour, employment contract, personnel policy and drug testing issues.  Mr. Clarkson is Chair of the Ogletree Deakins’ Drug Testing Practice Group and has particular expertise in drafting drug testing policies and in the complex scientific issues surrounding drug testing.