Yep the NHS is so far down the rabbit hole that they fail to warn/protect the staff member by clearly instructing them on what is required if they were told that the patient said she/he did not give permission to be touched by someone of their sex.
The staff member is open to possible criminal charges and loss of professional certification and liable to incur financial loss but faced with doing their job management opted to sign off blank paper.
The staff are instructed to lie to patients who notice the other sex in what should be single sex area and has a policy in place which enables the patient to be harrassed for noticing.