Restrictions aimed at stopping the spread of illicit massage parlors in Nevada have gained support by city officials amid concerns about sex, human and labor trafficking in the industry. The proposed regulations would require massage parlor operators to pass criminal background checks, ban 24-hour parlors and prohibit the use of one-way mirrors, cameras and showers in therapy rooms. Reno City Council initially approved the proposed regulations Wednesday after dozens of new massage parlors recently opened in the city.