Mr Finucane was shot dead in 1989
The widow of Belfast-based solicitor Pat Finucane has lost her challenge against a refusal by the British Government to hold a public inquiry into his murder.
Mr Finucane represented IRA hunger strikers and was killed in front of his family by UDA/UFF gunmen at his home in February 1989.
Geraldine Finucane had appealed against a 2015 judicial ruling that the decision taken by then-Prime Minister David Cameron in 2011 was lawful.
The family have long campaigned for a full public inquiry.
Her son Michael says the decision is disappointing.
"The court found that the reversal of that decision was lawful - but I think everyone knows that doesn't make it necessarily right.
"An inquiry was promised by a previous British government, and that promise should have been kept.
"And I think it's a mark of what the promises of the British Government in Westminster are worth".
A report carried out by barrister Desmond da Silva in 2012 found that employees of the British State and State agents played a key role in his murder.