Pub. L. 102-138, tit. III, pt. C, sec. 351
RECIPROCAL DIPLOMATIC STATUS WITH MEXICO.
SEC. 351. RECIPROCAL DIPLOMATIC STATUS WITH MEXICO.It is the sense of Congress that— (1) all United States law enforcement personnel serving in Mexico should be accredited in the same manner and accorded the same status as United States diplomatic and consular personnel serving as official representatives at United States posts in Mexico; and (2) all Mexican narcotics law enforcement personnel serving in the United States should be accredited in the same manner and accorded the same diplomatic and consular status as United States Drug Enforcement Administration personnel serving in Mexico.