Both types of alcohol minor decoy operations were done by Anderson Police on Saturday. An underage person working with police went into various retail stores and tried to buy alcoholic drinks. The purchases were successful at two of the stores and the cashiers were cited. The other type is the shoulder-tap operation, which involves the minor approaching customers outside stores and asking them to make a purchase. Two people bought booze for the minor decoy. One was cited and released, but the other was arrested on three active warrants. When these types of stings began in the 1980s, as many as 40 to 50 percent of those asked agreed to make the purchases, according to the APD. The rate now only averages around 10%.