Section 13H. Whoever commits an indecent assault and battery on a person who has attained age fourteen shall be punished by imprisonment in the state prison for not more than five years, or by imprisonment for not more than two and one-half years in a jail or house of correction.
Whoever commits an indecent assault and battery on an elder or person with a disability, as defined in section 13K, shall be punished by imprisonment in the state prison for not more than 10 years, or by imprisonment in the house of correction for not more than 21/2 years, and whoever commits a second or subsequent such offense shall be punished by imprisonment in the state prison for not more than 20 years. A prosecution commenced under this paragraph shall not be placed on file nor continued without a finding.