Container that prevents from an illegal operation and can be easily identified after being illegally operated

A container that prevents tampering and allows the tampering to be easily identified after being tapered with, the container comprising:

• a casing having an opening and a first abutting edge surrounding the opening;
• a cover selectively mounted onto the casing for closing the opening, wherein the cover has a second abutting edge laterally extending therefrom and abutting against the first abutting edge when the cover closes the opening;
• a puller extending from the second abutting edge of the cover;
• a snapping device formed between the casing and the puller, the snapping device having a plug formed on the puller and a socket defined in the casing for temporarily receiving the plug and holding the plug in place, wherein a pre-broken line is formed on the puller and surrounds a root of the plug, wherein the plug is maintained in the socket when the pre-broken line is broken and the cover is lifted from the casing;
• and
• a weakened portion formed on at least one place of the puller such that the puller is irreversibly curved after being lifted due to the weakened portion and the puller is used to easily identify whether the container is tampered with, wherein the pre-broken line is separated from a periphery of the plug and the weakened portion is formed between the pre-broken line and opposite sides of the puller, wherein the puller forms a pull-tab and the puller is curved along the weakened portion when the puller is lifted and when the pre-broken line which surrounds the plug is broken, wherein the weakened portion is formed with a fold edge and the pre-broken line has multiple connecting sections, the fold edge aligning with a corresponding one of the multiple connecting sections of the pre-broken line.