a tamper - indicating plastic closure construction is disclosed which includes an annular pilfer band which depends from an annular skirt portion of the closure . the pilfer band is partially detachably connected to the skirt portion by frangible ribs , and remains connected to the skirt portion attendant to removal of the closure from a container . to facilitate such removal , the pilfer band includes a fracturable portion . consistent and reliable performance are promoted by the formation of a stabilizing score in operative association with the fracturable portion of the pilfer band . a method of forming the closure is also disclosed , including the provision of movable scoring blades for effecting scoring of the closure to facilitate high - speed manufacture .