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.
Media campaigns have been used to prevent or reduce consumption of illegal drugs and smoking along with risky behavior like driving under the influence of alcohol or without seat belts. For all their power to inform and persuade, the media alone are unlikely to bring about large, sustained changes in drug use.