Legal. Wen 'an County, Langfang City, gives Chinese medicine to migrant workers, which is harmless and legal. Wen 'an County belongs to Langfang City, Hebei Province, and was established in the early Western Han Dynasty, between Beijing and Tianjin. Ancient land of Yan and Zhao, with a long history and profound cultural heritage, was named for its implication of "worshiping rites and governing the country and securing the world".