1. It is still possible that animals receive inhumane treatment.
During the tests, it is highly possible that animals would experience inhumane treatment, where they are being restrained. One good example of this case is the Draize Test, where the eyelids of the test rabbits are being held back for at least 3 days during the test, causing them pain and discomfort. It is because of this aspect that animal testing has received an enormous amount of criticism, not just in the UK, but also all around the world.