[22] The explanatory notes provide no assistance as to whether s 222(8) should exclude the operation of s 222 in the circumstances pertaining in counts 1, 3 and 4 when the 17 year old complainant and the appellant could have lawfully married, but only with an order from a judicial officer. The relevant parliamentary debate and the ordinary meaning of "entitled to be lawfully married" are capable of supporting either competing argument. The approach taken by this Court as to the meaning of "entitle" in Agen Biomedical and first alternative Macquarie Dictionary definition ("furnish with grounds for making a claim") tend to support the conclusion that the appellant and complainant were "entitled to be lawfully married" when she was 17 years old at the time of the occurrence of counts 1, 3 and 4. Applying the ordinary rules of construction, it is not easy to definitively determine whether the parliament, in enacting s 222(5) - (8), was intending to include conduct like the appellant's in counts 1, 3 and 4 in the offence of incest under s 222: cf Scott v Cawsey.[31] In such circumstances, the principle of construction adopted, effectively as a last resort, in construing a criminal statute creating a serious offence punishable by a lengthy period of imprisonment, is that an ambiguous term should be strictly construed in favour of the person charged: Beckwith v R.[32] This case is within that unusual category of cases where it is prudent to adopt that principle of construction. The complainant, at the time of counts 1, 3 and 4, was 17 years old and entitled under the Marriage Act to lawfully marry the appellant after obtaining an order of a judicial officer and with the necessary consent. She therefore had grounds for laying a claim to be able to lawfully marry. Although there are competing arguments, I am finally persuaded the better view is that the appellant and the complainant at the times of counts 1, 3 and 4 were "persons ... entitled to be lawfully married" under s 222(8). It follows that s 222 does not apply to the conduct alleged against the appellant in counts 1, 3 and 4.