Section 21. As used in sections 21 to 51H, inclusive, the following words shall have the following meanings, unless the context clearly otherwise requires:—

''51A report'', a report filed with the department under section 51A that details suspected child abuse or neglect.

''Advocate'', an employee of a governmental or non-governmental organization or entity providing appropriate services, or a similar employee of the department of children and families who has been trained to work and advocate for the needs of sexually exploited children.

''Appropriate services'', the assessment, planning and care provided by a state agency or non-governmental organization or entity, through congregate care facilities, whether publicly or privately funded, emergency residential assessment services, family-based foster care or the community, including food, clothing, medical care, counseling and appropriate crisis intervention services, provided: (i) that such agency, organization or entity has expertise in providing services to sexually exploited children or children who are otherwise human trafficking victims; and (ii) that such services are provided in accordance with such regulations that the department of children and families may adopt or the policies of such department.

''Child'', a person under the age of 18.

''Child advocate'', the child advocate appointed under chapter 18C.

''Child requiring assistance'', a child between the ages of 6 and 18 who: (i) repeatedly runs away from the home of the child's parent, legal guardian or custodian; (ii) repeatedly fails to obey the lawful and reasonable commands of the child's parent, legal guardian or custodian, thereby interfering with their ability to adequately care for and protect the child; (iii) repeatedly fails to obey the lawful and reasonable regulations of the child's school; (iv) is habitually truant; or (v) is a sexually exploited child.

''Commissioner'', the commissioner of children and families.

''Custody'', the power to: (1) determine a child's place of abode, medical care and education; (2) control visits to a child; and (3) consent to enlistments, marriages and other contracts otherwise requiring parental consent. If a parent or guardian objects to the carrying out of any power conferred by this paragraph, that parent or guardian may take application to the committing court and the court shall review and make an order on the matter.

''Department'', the department of children and families.

''Family requiring assistance'', a parent, guardian, custodian, sibling and any relative or caretaker responsible for a child requiring assistance.

''Habitually truant'', a school-aged child, not excused from attendance under the lawful and reasonable regulations of such child's school, who willfully fails to attend school for more than 8 school days in a quarter.

''Mandated reporter'', a person who is: (i) a physician, medical intern, hospital personnel engaged in the examination, care or treatment of persons, medical examiner, psychologist, emergency medical technician, dentist, nurse, chiropractor, podiatrist, optometrist, osteopath, allied mental health and human services professional licensed under section 165 of chapter 112, drug and alcoholism counselor, psychiatrist or clinical social worker; (ii) a public or private school teacher, educational administrator, guidance or family counselor, child care worker, person paid to care for or work with a child in any public or private facility, or home or program funded by the commonwealth or licensed under chapter 15D that provides child care or residential services to children or that provides the services of child care resource and referral agencies, voucher management agencies or family child care systems or child care food programs, licensor of the department of early education and care or school attendance officer; (iii) a probation officer, clerk-magistrate of a district court, parole officer, social worker, foster parent, firefighter, police officer or animal control officer; (iv) a priest, rabbi, clergy member, ordained or licensed minister, leader of any church or religious body, accredited Christian Science practitioner, person performing official duties on behalf of a church or religious body that are recognized as the duties of a priest, rabbi, clergy, ordained or licensed minister, leader of any church or religious body, accredited Christian Science practitioner, or person employed by a church or religious body to supervise, educate, coach, train or counsel a child on a regular basis; (v) in charge of a medical or other public or private institution, school or facility or that person's designated agent; or (vi) the child advocate.

''Parent'', a mother or father, unless another relative has been designated as a parent as defined in section 1 of chapter 118 for the purposes of receiving benefits from the department of transitional assistance.

''Relative'', the father or mother of a child; a stepfather, stepmother, stepbrother, stepsister, or any blood relative of a child, including those of the half blood, except cousins who are more distantly related than first cousins; any adoptive relative of equal propinquity to the foregoing; or a spouse of any such persons.

''Serious bodily injury'', bodily injury which involves a substantial risk of death, extreme physical pain, protracted and obvious disfigurement or protracted loss or impairment of the function of a bodily member, organ or mental faculty.

''Sexually exploited child'', any person under the age of 18 who has been subjected to sexual exploitation because such person:

(1) is the victim of the crime of sexual servitude pursuant to section 50 of chapter 265 or is the victim of the crime of sex trafficking as defined in 22 United States Code 7105;

(2) engages, agrees to engage or offers to engage in sexual conduct with another person in return for a fee, in violation of subsection (a) of section 53A of chapter 272, or in exchange for food, shelter, clothing, education or care;

(3) is a victim of the crime, whether or not prosecuted, of inducing a minor into prostitution under by section 4A of chapter 272; or

(4) engages in common night walking or common streetwalking under section 53 of chapter 272.

''Young adult'', a person between the ages of 18 and 22.