sentences:  Another popular song at the time, "Wasurecha Iya yo" was banned and copies withdrawn for being too erotic, warranting the offense of "disturbing public law and order, damaging customs".This led to the introduction of a de facto preemptive self-censorship system in the records industry, conducted with the consultation of officials from the Home Ministry.Because punishment for publishing media that was banned was minimal (the maximum jail sentence was under 2 years, but most publishers were simply fined), there were some people who specialized in publishing such media.