If PSP feels that an organized search would be productive and there is no risk of contaminating a crime scene, I would advise that the team leader contact the PA SAR Council to obtain a trained search manager to help organize a search. You cannot go onto private property without owner approval which really limits where you can go. The property owners could be liable if someone is injured on their property. This is why SAR teams have special insurance, and when invited by LE, have LE's assistance in gaining access to private property. Searches are not haphazard. They are well organized, people are checked in and out so no one gets left behind. You will be walking in pickers, poison ivy, poison oak and sumac, not to mention this is tick season. You will need a lot of water and bathroom facilities. Ensure there is a medic on scene and that leaders have two way radios and all searchers have a whistle. "road crew" reflective vests are also advisable.