(a) a person knowingly circumcises, excises, or infibulates the whole or any part of the labia majora or labia minora or clitoris of another person who has not reached eighteen years of age; or

(b) being a parent, guardian or other person legally responsible and charged with the care or custody of a child less than eighteen years old, he or she knowingly consents to the circumcision, excision or infibulation of whole or part of such child's labia majora or labia minora or clitoris. 2. Such circumcision, excision, or infibulation is not a violation of this section if such act is:

(a) necessary to the health of the person on whom it is performed, and is performed by a person licensed in the place of its performance as a medical practitioner; or

(b) performed on a person in labor or who has just given birth and is performed for medical purposes connected with that labor or birth by a person licensed in the place it is performed as a medical practitioner, midwife, or person in training to become such a practitioner or midwife. 3. For the purposes of paragraph (a) of subdivision two of this section, no account shall be taken of the effect on the person on whom such procedure is to be performed of any belief on the part of that or any other person that such procedure is required as a matter of custom or ritual. Female genital mutilation is a class E felony.