lay hands on
Also, get one's hands on. Get someone or something in one's grasp, especially to do harm. For example, Tom's gone off with the keys again; just wait till I lay my hands on him. [c. a.d. 1000]
Also, get or lay or put one's hands on. Find, obtain, as in As soon as I lay hands on the book, I'll call you, or He couldn't seem to put his hands on last year's sales figures. Also see get hold of.