Here is a test given for Observation. View the photo first for 3 seconds, then write down all of your observations. Then stare at photo and write corrected observations as well as any thoughts. I will be glad to share some of the investigators intuitive thoughts if asked.
http://liarcatchers.com/crime_scene_investigator.html
Here are some thought starters: Here are some thought starters: Why was the stamp removed and placed back on, what is the size of the drill bit, what do the keys operate, what is unique about the hammer, who wears these type glasses?