Cases in which people try to hurt or kill themselves in prison have risen by over a third in the last four years.
The Scottish Government will allow public bodies to use IMSI catchers with less oversight than in England and Wales, despite privacy fears.
No-one has been caught for using drones to smuggle contraband drugs, tobacco and mobile phones into Scottish prisons, The Ferret can reveal.
Mobile phone firms have been criticised for letting government agencies exploit weaknesses in their networks rather than taking steps to secure customer data.
Calls for a privacy probe after Scottish Prison Service is first UK agency to admit using controversial phone blocking technology.