ant ial ▁chance ." ▁Law ▁enfor cement ▁searches ▁require ▁" Pro b able ▁cause ": ▁When ▁searches ▁are ▁conducted ▁by ▁law ▁enfor cement ▁officers , ▁they ▁must ▁have ▁" prob able ▁cause ": ▁i . e ., ▁the ▁facts ▁and ▁circumstances ▁within ▁his ▁knowledge , ▁and ▁of ▁which ▁he ▁had ▁reason ably ▁trust worth y ▁information , ▁must ▁be ▁" su fficient ▁in ▁themselves ▁to ▁war rant ▁a ▁man ▁of ▁reasonable ▁ca ution ▁in ▁the ▁belief ▁that ▁an ▁off ense ▁has ▁been ▁or ▁is ▁being ▁committed , ▁and ▁that ▁evidence ▁bearing ▁on ▁that ▁off ense ▁will ▁be ▁found ▁in ▁the ▁place ▁to ▁be ▁searched . ▁School ▁searches ▁merely ▁require ▁" reason able ▁susp icion :" ▁ ▁Per ▁New ▁Jersey ▁v . ▁T . ▁L . ▁O ., ▁there ▁is ▁a ▁lower ▁level ▁of ▁susp icion ▁necessary ▁in ▁the ▁school ▁setting : ▁ ▁searches ▁of ▁students ▁by ▁school ▁administr ators ▁require ▁only ▁" reason able ▁susp icion ," ▁such ▁that ▁" the ▁measures ▁adopted ▁are ▁reason ably ▁related ▁to ▁the ▁object ives ▁of ▁the ▁search ▁and ▁not ▁excess ively ▁intr us ive ▁in ▁light ▁of ▁the ▁age ▁and ▁sex ▁of ▁the ▁student ▁and ▁the ▁nature ▁of ▁the ▁inf raction .” ▁... ▁with ▁a ▁la x er ▁( but ▁more ▁ambigu ous ) ▁definition ▁of ▁reliable ▁knowledge : ▁This ▁lower ▁threshold ▁comes ▁with ▁a ▁corresponding ly ▁la x er ▁definition ▁of ▁" re li able ▁knowledge ," ▁but ▁it ▁has ▁been ▁hard ▁to ▁define . ▁ ▁C ases ▁have ▁looked ▁to ▁" the ▁degree ▁to