Answer:
conducting background checks on its employees.
Explanation:
Allen who is staying at the Five Seasons Resort Hotel for a conference reports to the hotel security of his missing laptop from the room.
Thus the hotel authority can avoid all the strict liability for such theft incident occurred in their hotel accept the fact that conducting background checks on its employees.
By doing this, the hotel authority will know their employees past and background and can help in finding the culprit.
Thus the answer is
"conducting background checks on its employees".