An arrangement comprising: a whiplash protection system comprising a safety device ; and an inspection tool for inspecting the status of the safety device which is adapted to be triggered by stress exceeding a threshold, wherein the safety device is adapted to be comprised in a vehicle seat, the inspection tool is configured to work together with the safety device, wherein the inspection tool comprising: - a first fitting element and a second fitting element arranged with a predetermined fixed relative displacement relative each other, wherein the relative positions of the fitting elements are configured to simultaneously match with corresponding first and second safety device reference points when the safety device is in an un-triggered state, wherein the relative positions of the fitting elements are configured to simultaneously match with corresponding two safety device reference points only when the safety device is in an un-triggered state, wherein the relative positions of the fitting elements are configured to not match with the corresponding two safety reference points when the safety device has been triggered, wherein the positions of the two safety device reference points relative each other are configured to be altered when the safety device has been triggered by a stress exceeding the threshold. a whiplash protection system comprising a safety device ; and an inspection tool for inspecting the status of the safety device which is adapted to be triggered by stress exceeding a threshold, wherein the safety device is adapted to be comprised in a vehicle seat, the inspection tool is configured to work together with the safety device, wherein the inspection tool comprising: - a first fitting element and a second fitting element arranged with a predetermined fixed relative displacement relative each other, wherein the relative positions of the fitting elements are configured to simultaneously match with corresponding first and second safety device reference points when the safety device is in an un-triggered state, wherein the relative positions of the fitting elements are configured to simultaneously match with corresponding two safety device reference points only when the safety device is in an un-triggered state, wherein the relative positions of the fitting elements are configured to not match with the corresponding two safety reference points when the safety device has been triggered, - a first fitting element and a second fitting element arranged with a predetermined fixed relative displacement relative each other, wherein the relative positions of the fitting elements are configured to simultaneously match with corresponding first and second safety device reference points when the safety device is in an un-triggered state, wherein the relative positions of the fitting elements are configured to simultaneously match with corresponding two safety device reference points only when the safety device is in an un-triggered state, wherein the relative positions of the fitting elements are configured to not match with the corresponding two safety reference points when the safety device has been triggered, wherein the positions of the two safety device reference points relative each other are configured to be altered when the safety device has been triggered by a stress exceeding the threshold. <EOS>