Ingram has had his passport confiscated over an unspecified complaint made against him by a defendant in UK criminal proceedings.
Ingram, an insolvency specialist and expert in proceeds from crime, fraud and asset recovery, has not been charged or imprisoned.
The complaint regards UK proceedings in which Ingram is a court appointed receiver and an officer of the court, according to Grant Thornton.
He “vehemently denies any wrongdoing”, the firm said in a statement.
Ingram is a chartered accountant and also helped establish the Insol-Europe Anti-Fraud Forum.
“Grant Thornton is supporting David and his family throughout this time and remain in regular and close contact with him.
“Given the current status of the investigation in the UAE and the reporting restrictions in the UK which apply, it is neither appropriate or possible to comment any further at present,” the firm’s statement read.