In most countries, it is illegal to even attempt to produce a cloned human being (reproductive cloning). Some countries, do, however, allow researchers to pursue therapeutic cloning for research in very specific circumstances. In the UK, for example, the Human Fertilisation & Embryology Authority has granted 2 licences:

1. To the Roslin Institute to create stem cells from embryos produced by therapeutic cloning in order to study Motor Neuron Disease. The donor cells will come from patients with the disease. This licence is currently inactive.
2. To Centre for Life in Newcastle, to create stem cells from embryos produced by therapeutic cloning to increase knowledge about the development of embryos and enable this knowledge to be applied in developing treatments for serious disease.