@FrenchFancie you are mistaken about what rape is, and I feel it’s an important thing to correct.
In the UK, the elements of rape in law are:
(A) intentionally penetrates the vagina, anus or mouth of another person (B) with his penis;
(B) does not consent to the penetration, and
(A) does not reasonably believe that (B) consents
www.cps.gov.uk/legal-guidance/rape-and-sexual-offences-chapter-2-sexual-offences-act-2003-principal-offences-and
The 2003 sexual offences act actually states “with his penis” - rape is a crime that can only be perpetrated by a man.
There are a very few convictions of women for rape by ‘joint enterprise’ - their actions fundamentally facilitated the rape (such as holding the victim down for a man to rape) so they were convicted of the crime jointly, but a penis still had to be involved for it to be rape.
In this brave new world there are also transwomen convicted of rape who may now be counted in various statistics as women. They have still used their penises to rape.
Other countries may have different legal definitions, but in the UK, rape involves a penis.
Anyway, back to convicts cutting hair...... a PP wrote about released violent/sexual offenders likely to have conditions on their licence which would not permit this kind or work - that is pretty reassuring, because that is my reluctance to have a male ex-prisoner doing my hair. But I guess that fudges the conditions of the OP question that we don’t know the nature of the crime! If I knew it wasn’t violent or sexual in nature then I wouldn’t have the same level of concern - someone convicted of fraud or burglary could crack on.