However, the most susceptible variable in blood testing for alcohol levels is determined by the actual methodology of the blood drawing. First and perhaps most obvious, the sample is at risk of alteration by an alcohol swab before the needle is inserted.
Alcohol advertising is the promotion of alcoholic beverages by alcohol producers through a variety of media. Along with tobacco advertising, alcohol advertising is one of the most highly regulated forms of marketing. Some or all forms of alcohol advertising is banned in some countries. There are important studies about alcohol advertising published, such as J.P. Nelson's in 2000.
The idea is to give the ad the look of an official article to give it more credibility. Also, informative ads tend to help generate a good reputation. In some circumstances a business might be required to run informative advertising as part of resolving a lawsuit. Tobacco companies are one of the more notable examples of this. Alcohol producers have been running advertisements with the general message being don't drive drunk.