February 2018 Man imprisoned for sexual relationship with underage girl in 2016 A man has been jailed for five years for child sex offences after he had a sexual relationship with an underage teenager.  Nathan Burns, 29, from Middle Meadow in Chalfont St Giles, had a relationship with the girl in 2016.  He was sentenced to five years in prison after pleading guilty to four counts of sexual activity with a child, one count of count of causing a child to look at images of a person engaging in sexual activity and one count of possession of an indecent photograph of a child on February 12.