I had occasion earlier this year to be interviewed under caution as a result of a theft of service equipment from my place of work. Interviewes were delayed by several weeks as there was a jurisdictional spat between the MDP and the RAFP. The MDP treated the matter as a simple (and regrettably all-too-common) theft from my place of work whereas the RAFP regarded it as something altogether more sinsiter. Eventually the RAFP were allowed to interview me under caution. I had the benefit of a good solicitor however it was not required. The interview was very professional, and the investigators were aware of the systemic sy faults that abounded at my workplace. The matter eventually dried up as my solicitor reinterated that I was a victim of a criminal act and that the employer (MOD) had a statutory responsibility to provide a safe and secure (peacetime) working environment.
Mind you, the lap top was never found.