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Andreas_Rebmann'Most organizations have their own definitions and categories for reporting incidents, which makes comparative research difficult'
'Typically, perpetrators have complex and even compound motives for committing violence.'
'Finally, there are ethical challenges to gathering more data and disseminating research. These range from the universal, such as ensuring that research does not inadvertently do harm, addressing concerns over patient confidentiality and appropriately sharing the findings with research participants, to concerns specific to research in complex security environments'