The details were disclosed in reports released Friday by police in the Cleveland suburb of Rocky River.
The reports say police, tipped off to suspicious packages by postal inspectors, arranged a delivery Tuesday under surveillance and Melanie Perez accepted two packages.
According to the reports, a later house search under warrant began while Perez and his wife, also charged, were out for lunch and a movie. A baby sitter was caring for two children.
Police say Perez returned home and mentioned personal marijuana use.
Defence attorney Terry Gilbert says the two will plead not guilty and expect a favourable outcome.