BY Stephanie Farr
The Philadelphia Daily News
PHILADELPHIA — A group of Philadelphia police officers spends its free time investigating claims of disorderly conduct, harassment and criminal mischief, knowing the cases don't have a ghost of a chance of making it to court.
Still, the officers set up video cameras at each scene and spend hours poring over evidence, looking for just one shadow, listening for just one voice.
Philly police group ghost hunters in spare time