- b asket ▁mirror s ▁are ▁commonly ▁used ▁in ▁gro c ery ▁stores ▁where ▁the ▁checkout ▁lan es ▁are ▁close ▁together ▁and ▁the ▁c ash ier ▁might ▁be ▁unable ▁to ▁see ▁the ▁entire ▁basket ▁to ▁ensure ▁payment ▁of ▁all ▁items . ▁ ▁Display ▁cases ▁ ▁Some ▁expensive ▁mer ch and ise ▁will ▁be ▁in ▁a ▁locked ▁case ▁requiring ▁an ▁employee ▁to ▁get ▁items ▁at ▁a ▁customer ' s ▁request . ▁ ▁The ▁customer ▁is ▁either ▁required ▁to ▁purchase ▁the ▁mer ch and ise ▁immediately ▁or ▁it ▁is ▁left ▁at ▁the ▁checkout ▁register ▁( under ▁the ▁super vision ▁of ▁a ▁c ash ier ) ▁for ▁the ▁customer ▁to ▁purchase ▁when ▁finished ▁sho pping . ▁ ▁This ▁prevents ▁the ▁customer ▁from ▁having ▁a ▁chance ▁to ▁conce al ▁the ▁item . ▁Another ▁way ▁of ▁lock ing ▁mer ch and ise , ▁especially ▁popular ▁in ▁liqu or ▁stores , ▁is ▁to ▁place ▁it ▁in ▁a ▁secure , ▁store - admin ister ed ▁hard - pl astic ▁cap ▁on ▁a ▁regular ▁bott le ▁top . ▁Once ▁purchased ▁the ▁cl erk ▁will ▁remove ▁the ▁cap ▁with ▁a ▁store ▁key . ▁It ▁is ▁not ▁otherwise ▁easily ▁remov able . ▁Many ▁stores ▁also ▁lock ▁CD s , ▁DVD s , ▁and ▁video ▁games ▁in ▁lock ing ▁cases , ▁which ▁can ▁only ▁be ▁opened ▁by ▁the ▁checkout ▁operator ▁once ▁the ▁item ▁has ▁gone ▁through ▁the ▁checkout . ▁Many ▁stores ▁have ▁certain ▁items ▁on ▁lock ing ▁p eg s ▁which ▁are ▁secure ▁hook s ▁to ▁where ▁the ▁item ▁cannot ▁be ▁removed ▁from ▁the