atory , ▁and ▁where ▁the ▁search ▁was ▁conf ined ▁to ▁the ▁student ’ s ▁pur se , ▁the ▁search ▁of ▁Red ding ▁involved ▁her ▁body ▁and ▁rest ed ▁on ▁the ▁bare ▁accus ation ▁of ▁another ▁student ▁whose ▁reli ability ▁the ▁Ass istant ▁Princi pal ▁had ▁no ▁reason ▁to ▁trust . ▁The ▁Court ’ s ▁opinion ▁in ▁T . ▁L . ▁O . ▁plain ly ▁stated ▁the ▁cont rolling ▁Four th ▁Am end ment ▁law : ▁A ▁search ▁ordered ▁by ▁a ▁school ▁official , ▁even ▁if ▁“ just ified ▁at ▁its ▁in ception ,” ▁cross es ▁the ▁constitution al ▁boundary ▁if ▁it ▁becomes ▁“ ex cess ively ▁intr us ive ▁in ▁light ▁of ▁the ▁age ▁and ▁sex ▁of ▁the ▁student ▁and ▁the ▁nature ▁of ▁the ▁inf raction .” ▁ 4 6 9 ▁U . S ., ▁at ▁ 3 4 2 ▁( internal ▁quot ation ▁marks ▁omitted ). ▁Here , ▁“ the ▁nature ▁of ▁the ▁[ supp osed ] ▁inf raction ,” ▁the ▁sl im ▁basis ▁for ▁suspect ing ▁Sav ana ▁Red ding , ▁and ▁her ▁“ age ▁and ▁sex ,” ▁i bid ., ▁establish ▁beyond ▁doubt ▁that ▁Ass istant ▁Princi pal ▁Wilson ’ s ▁order ▁cannot ▁be ▁recon ci led ▁with ▁this ▁Court ’ s ▁opinion ▁in ▁T . ▁L . ▁O . ▁Wilson ’ s ▁treatment ▁of ▁Red ding ▁was ▁ab us ive ▁and ▁it ▁was ▁not ▁reasonable ▁for ▁him ▁to ▁believe ▁that ▁the ▁law ▁permitted ▁it . ▁ ▁Con curr ing ▁in ▁the ▁judgment ▁in ▁part ▁and ▁diss ent ing ▁in