David C. Garlock is a principal in the National Tax Department of Ernst & Young in Washington, D.C., specializing in the taxation of financial products, including debt instruments and derivatives. He has been with Ernst & Young since 1995. Prior to that, he served as an attorney-advisor and as associate tax legislative counsel in the Treasury Department's Office of Tax Policy (1982 to 1986) and as a partner in a New York-based law firm (1986 to 1995). He is an adjunct professor of law in the Graduate Tax Program at the Georgetown University Law Center, as well as at Michigan Law School, and has lectured extensively at continuing professional education programs in his areas of expertise. Prof. Garlock is the principal author of a treatise entitled Federal Income Taxation of Debt Instruments, now published by CCH as a sixth edition, as well as numerous articles on the taxation of financial products. He is a past chair of the American Bar Association Tax Section Committee on Financial Transactions. He received his JD, cum laude, from Harvard Law School in 1979 and his BA, magna cum laude, in mathematics from Harvard College in 1975.