HAND

(CONTROL) [noun] [U] - control or responsibilityThey were very drunk before the dinner, but things really got out of hand when they started throwing cream at each other.There's no need to panic. The police have the situation in hand (= under control).How come there's a problem? I thought you had everything in hand (= arranged and organized).They should take their daughter in hand (= bring her under control) before she does something really serious like setting fire to her school.