The new Scottish Information Commissioner has launched an investigation into allegations that the Scottish Government has blocked or delayed freedom of information requests.
Revelations that the Ministry of Defence is planning 14 new developments at the Trident nuclear bases on the Clyde have sparked criticism.
The Ministry of Defence has censored official warnings about the safety of the Trident nuclear weapons system based on the Clyde.
The Scottish Environment Protection Agency ditched a toxic pesticide report after fears it could attract freedom of information requests.
The Scottish Government put pressure on its environmental watchdog to drop a plan to ban a toxic pesticide so as not to upset the fish farming industry.
Scottish ministers have held private meetings with the fracking firm Ineos and Grangemouth executives from China five times in 13 months.
The Scottish Government allowed a US drug company to secretly rubbish a scientific study blaming one of its pesticides for killing wildlife.
Journalists have accused the Scottish Government of failing to keep records and frustrating freedom of information law.
The Ineos refinery at Grangemouth has been condemned for “poor” environmental performance for the second year running.