The Sentencing Council website explains how long an offender would spend in prison. I was interested in the first part of the below paragraph.
For some serious violent or sexual offences where the sentence is 7 years or more the offender will be released at the two-thirds point. For terrorism offences the release arrangements are different and offenders may serve two-thirds or more of their sentence in custody.
Regarding the first part of above paragraph, how would somebody find out which sexual offences are being referred to?
Additionally, if a defendant did commit one of the sexual offences referred to, would they then have to be sentenced to a period of at least seven years for the two-third part to apply?
I researched Assault by Penetration as a random example, but I was unable to find whether it was the type of sexual offence where the offender might be released after two-thirds.