Résumé
"This report examines the effects of fatigue and night work on human cognitive performance and offers countermeasures that may be used to combat those effects. The report is applicable to security personnel and police in general, especially those who work night shift s. It draws from both experimental and field studies conducted with police and others who work evening and rotating shift s, as well as fatigue research conducted by the Department of Defense concerning the performance of weapon systems operators."-Page 5.