Blood Alcohol Content is the legal name for BAC but Blood Alcohol Concentration is sometimes used for simpler description. Blood alcohol content is usually expressed as a percentage of ethanol in the blood in units of mass of alcohol per volume of blood or mass of alcohol per mass of blood, depending on the country.
One way that society controls science is that the government can make certain experiments illegal. Hmm, maybe, but the apex answer is: People pass laws to restrict some research.
: the practice of making laws or using other methods to influence public opinion and solve social problems or improve social conditions.: management of human beings in accordance with their place and function in society: applied social science. the practice of making laws or using other methods to influence public opinion and solve social problems or improve social conditions.