Abstract: A latch is provided for engagement between the closure member of an enclosure and the frame of the enclosure, the latch comprising a member with a first portion, including a hook portion to engage the frame and prevent the closure member frame from fully opening. The first portion and a complementary second portion each may include buttressing wall sections, one of which must be deflected from alignment with the other to allow the hook portion to be deflected and clear the frame. The latch may be useful as a childproof device to prevent unwanted entry into the enclosure. In addition, a pin may extend from the hook portion and engage a hole in the frame to provide a third feature which must be actuated in order to fully open the closure member.