I believe you are not that much English, that your only source of information on Pakistan is news media!
I start with head lines,,, news head lines is changed while it was referring to Express Tribune of Pakistan, who never miss a opportunity to report crimes in Pakistan and keep resonating them.
So the title in express tribune was '
Woman gang raped in Faisalabad village over free-will marriage'
There's no official confirmation of this news or by any other news.
Rape is an un Islamic act, to believe that any official or semi official authority can legalize rape is absurd.
I personally, reject this news as wrongly reported... every thing registered in FIR is not always truth.
Malala Yosef Zai accuse both Pakistan army and TTP, creating the impression in foreign world that both Pak army and TTP are against girl education.
She even won noble prize for solely fighting the two giants, which she paint with same brush. I personally, don't believe her accusations on army, simply because I'm a Pakistani and know what is Pak army capable of and what not!
In same way accusations in FIR shouldn't be trusted unless investigation is completed. I hope, when Express tribune can reach the girl they are also able to record statement of girl on video and had names of village council and rapist!
Otherwise... it's just one of those Express Tribunes malign Pakistan attempts.