Campaigners have said they are confident that an appeal by a Government agency concerning corruption in the arms trade will fail.
The House of Lords will this week hear the Serious Fraud Office's appeal against the High Court's recent decision on a BAE corruption investigation.
The appeal will begin at 10.00am on Monday 7th July and last for two days.
The High Court ruled on 10th April that the Serious Fraud Office, acting on government advice, had behaved unlawfully in terminating its investigation into alleged corruption in BAE's Saudi arms deals.
The ruling was the result of a judicial review brought by The Corner House and the Campaign Against Arms Trade (CAAT).
Nicholas Hildyard of The Corner House said: "We remain confident of the strength of our case in the House of Lords. The principle that no one is above the law is fundamental to justice."
Symon Hill of CAAT said: "People from all walks of life have been outraged that the UK government should place the demands of BAE and the Saudi regime ahead of British justice. The High Court shared their shock at the decision to stop the investigation. We go into the House of Lords with a very strong case and with public opinion behind us."