The Penal Colony

The 6 men hug against any object they could find awaiting the outcome to their partners arrest. When they had been put inside the police cars, the 6 men tried to sneak out without being noticed. One by one they filed out and hugged as tightly as possible against the wall until they got to a door reading "Fire Escape."
"Alright guys," Starts the man in the lead.
"3 of us will go up the fire escape, and 3 will find another entrance.
All the men agree, so opening the fire escape door, 3 of the men in the party start climbing the ladder just inside the doors, then the door is closed and the other 3 men try to find another entrance. unfortunately for them, there were invisible lasers that were set up around the compound in case of intruders. The main function of the lasers were to alert the turrets on the side of the building to the location immediately of the intruders. Anyway, the 3 men walked straight into the lasers and within 5 seconds, all had hit the ground without a sound.