A latch assembly is provided for limiting movement of a first element, such as a drawer or door of a cabinet, relative to a second element in a first position of the latch assembly, and allowing non-restricted movement of the first element relative to the second element in a second position of the latch assembly. Abase plate is mounted to the first element, and a stop element is mounted to the second element. The latch assembly also comprises a latching plate reciprocally, vertically and moveably mounted on the base plate, such that the latching plate is moveable between a first vertical position engaging the stop element and a second vertical position where said latching plate is disengaged from said stop element. An unlock lever is pivotably mounted to the base plate, and the unlock lever is manually moveable from a first position out of engagement with the latching plate to a second position where the unlock lever secures the latching plate in its second vertical position. The latching plate remains unable to engage the stop element in the second vertical position of the latching plate.