RAID acronym came later (1992), as a memory-aid for the general theme that underpins the strategies. The acronym RAID (standing for Reinforce Appropriate, Implode Disruptive) was registered as a UK trademark in 1992. In January 2019, in the first case ever to be heard by the Intellectual Property Enterprise Court (IPEC) outside of London, the High Court judge, HH Melissa Clarke found that an NHS Foundation Trust had infringed the RAID trademark by using it to stand for Rapid Assessment Intervention and Discharge and they had to stop using it. Evidence The RAID model has been measured through the Overt Aggression Scale - Modified for Neurorehabilitation (OAS-MNR) - and shown a decrease in aggressive behaviours by over 80% across a two year period. Research also shown that the RAID model significantly reduced the number of incidents of challenging behaviour on a medium secure LD ward, and a paper conducted by Dr Cheryl Knowles shown that that there was as significant increase in staff members’ confidence towards challenging behaviour - this was observed immediately post training, and maintained 4-months following the training. Training Training in the RAID approach is delivered by the Association for Psychological Therapies and has been attended by over 20,000 professionals working for the UK's National Health Service (including Rampton Secure Hospital) and independent healthcare providers (including: St Andrew's Healthcare, The Priory Group, Cygnet Health Care, and Elysium Healthcare). Notes Positive psychology