In some states, it's legal to own a venomous snake, but you might need a special permit and liability insurance. elaborate
There's no universally agreed-upon "world court" with compulsory jurisdiction to settle all international disputes. Countries can choose whether or not to participate in international court proceedings. elaborate
Many legal research databases use proprietary algorithms and indexing methods, meaning the results you get can vary significantly depending on the database used. elaborate
In some areas, building permits can be denied for seemingly trivial reasons, like the wrong color paint on a mailbox, if it violates a local ordinance. elaborate
The smell of a product can be trademarked. elaborate