Zayna Iman, 38, has obtained CCTV of her 40-hour detention but there are three hours of missing footage.

Unconscious with her hands cuffed behind her back, a woman is carried into a police cell.

She is forced face-down on to a thin mattress. Police officers take off her jeans, cut off her knickers, pull a pair of oversized custody shorts over her legs, then remove her top and bra before leaving her alone and topless. All of this is captured on CCTV.

The woman in the footage is Zayna Iman, 38, who alleges she was drugged and sexually assaulted while being held in custody by Greater Manchester Police (GMP).

“Instead of providing an unconscious female with medical attention they thought, ‘I know let’s take her clothes off instead and leave her there’,” says Zayna, sounding incredulous. “It’s just something that the police do for their own perverse kicks.”