This could be the law against homosexuality.. and it is private offence (four eyes witnesses).
Lesbian
And the two women who commit lewdness, you shall bring four witnesses over them from amongst you; if they bear witness, then you shall restrict them in the homes until death takes them, or God makes for them a way out. [Quran 4:15]
Gay
And the two men who commit it from amongst you, then you shall annoy them. If they repent and amend, then leave them alone. God is Redeemer, Merciful. [Quran 4:16]
for me, the need of four eyes witnesses means that the open demonstration of "adultery" is forbidden. It is a private offence and they neither harm others. So better mind our own business. peace.