There are many countries including the United States of America that considers the semillas de marijuana as harmful product and have declared them illegal under the existing law of the land. For example, in United States of America, the Federal laws as well as the laws in 48 States in it have framed legislation to declare these seeds and plants as prohibited articles. In some countries these seeds have not only been declared as dangerous drug but have been all but eradicated by government and law-enforcement agencies

In some countries where the authorities have taken steps to destroy the semi di marijuana plants and seeds by burning out the fields, they have become rarer species. The reasons are that these seeds are considered harmful not only physically to human beings but also bring up avoidable social and mental evils. The reasoning may not have any scientific basis and despite the destruction of seed fields, the crime graph in these countries may not have shown a downward trend, but the fact remains that many countries have taken steps to destroy the plants and seeds in this manner.

Despite such attempts at eradication of Sementes de marijuana the cannabis seeds have survived and are still available worldwide. People in many parts of the world still take to breeding and growing of Graines de cannabis ignoring the legal prohibitions imposed by the authorities and the law of the land.