Good Samaritan laws are designed to protect people who act in good faith. They do not penalize someone for not acting, and generally they do not apply to professionals. Whether a cop, trained in first aid or CPR counts as a professional, I don't know.

jtagen [at] digication.com

The copy designed for the touchscreen I used (search eBay for "ramline tablet") doesn't work too well when viewed on non-touchscreen, as I hide the mouse cursor and some javascript tricks to make the 'tapping' of an icon more sensitive.

If you're seriously interested, I can set up a slightly different copy so you can play with it on a PC.