A possible way to improve eyewitness testimony?

http://www.livescience.com/humanbiology/070425_eyes_memory.html

Apparently moving your eyes horizontally for 30 seconds improves your recall. In an experiment similar to the one we did in class, the researchers had students listen to a list of words that "converged" on a word, but never said it (eye, thread, sewing, etc... all converge on "needle", but "needle" wasn't in the list). After hearing the list of words, 1/3 of the students moved their eyes horizontally for 30 seconds, 1/3 moved their eye vertically for 30 seconds, and the last 1/3 did nothing. Those that moved their eyes horizontally did not include needle 10% more often than the other groups.

So if you see a crime, move your eyes horizontally back and forth for 30 seconds and you'll have no problem passing the Manson test.