Radha Stirling, chief executive of Detained in Dubai, said that “rather than treating Brooke solely as a murder suspect, investigators must also examine her being the victim of serious violence and possible exploitation”.

Ms Stirling added: “We will be working to ensure that her rights are protected, that she receives a fair trial, and that the circumstances leading to this tragedy are fully and impartially examined.

“Those closest to Brooke became increasingly concerned that she may have been lured to Dubai under false pretences for the purpose of exploitation.

“Their concerns were fuelled by his unexplained change in behaviour, the one way ticket, the bikini clad professional photo shoot arranged during her first visit, the alleged withholding of her passport, Brooke telling friends that ‘things weren’t right’, and her growing fear that she needed to escape.

“We are calling for Brooke to be released on bail pending the outcome of the investigation.

“She should be afforded protection, appropriate medical care, legal representation and immediate British consular assistance while the investigation proceeds.”

A Foreign, Commonwealth and Development Office spokesperson said: “We are in touch with a British woman detained in the UAE, we are supporting her family, and we are in contact with the local authorities.”