Abercrombie & Fitch’s former chief executive is not fit to stand trial on sex trafficking charges as he is suffering from dementia, both prosecutors and his lawyers have said.

Mike Jeffries has Alzheimer’s disease, Lewy body dementia and the “residual effects of a traumatic brain injury”, his defence attorneys wrote in a letter filed at a federal court in Central Islip, New York.

The 80-year-old needs around-the-clock care, they added, citing evaluations by medical…