The newer tools in ghost hunting can be more entertaining than the actual hunt. Case in point, the laser grid. This handy little device displays a pattern of lights on a wall and you can see if something crosses it quite easily by the interruption in the light pattern. Other than being terribly mesmerizing and just begging someone to do laser grid dancing instead of strobe light dancing, it has some merit. Although we can’t say that an entity of any kind has mass and can break through the light patterns, if they are able to leave a trail by refracting the lights, then we are one step closer to understanding what they are made of. There are some issues with this, such as whether dust or bugs could cause interruptions or if some knucklehead put the grid on a curtain and the air-conditioner turned on and blew the drapes.
Would I pack one? Hell, yes, but then I love atmosphere on a ghost hunt and if your local haunted inn turns into a disco after hours, then the hunt may take on whole new meaning. Besides, it might be fun for making hand puppets on the wall if the hunt is a total bust.
On a more serious note, should a shadow person have the form and substance as are reported, this device might be just the gem to capture that. My son used the target light on his camera on a shadow person only to find the light sat on it and not through it. The only problem is that shadow people have a tendency to come and go at their own will and when they think we’re not out and about, so setting a 10’ x 10’ trap for them is like trying to snare the only fly in the house on a postage stamp.