The legal age of consent is 16, nobody below that age can legally consent to sex, end of conversation.
Your talking bollocks.
Why don't you quote me the relevant section number of Sexual Offences Act 2003 which says a 15 year old does not have the freedom and capacity to consent to sexual activity. The legal age below which consent cannot legally be given is 13.
If he reasonably believed her to be 16 or older he would have been found not guilty, because she consented to him kissing her and putting his hands down her pants.
However much you stamp your feet doesn't alter the simple fact she was old enough to consent to sexual activity. He was convicted because he shouldn't have sent her risqué texts, kissed her and put his hands down her pants because he knew she was 15.
This may help?
England and Wales
The age of consent to any form of sexual activity is 16 for both men and women. The age of consent is the same regardless of the gender or sexual orientation of a person and whether the sexual activity is between people of the same or different gender.
It is an offence for anyone to have any sexual activity with a person under the age of 16. However, Home Office guidance [1] is clear that there is no intention to prosecute teenagers under the age of 16 where both mutually agree and where they are of a similar age.
It is an offence for a person aged 18 or over to have any sexual activity with a person under the age of 18 if the older person holds a position of trust (for example a teacher or social worker) as such sexual activity is an abuse of the position of trust.
The Sexual Offences Act 2003 provides specific legal protection for children aged 12 and under who cannot legally give their consent to any form of sexual activity. There is a maximum sentence of life imprisonment for rape, assault by penetration, and causing or inciting a child to engage in sexual activity.
Read more at http://www.fpa.org.uk/factsheets/law-on-sex#E4v1LGf3J2WVA7BC.99
I'm not stamping anything, feel free to keep digging.