Drug Law Enforcement
In 1970 the U.S. Congress passed the Comprehensive Drug Abuse Prevention and Control Act (Drug
Control Act). Most of the states followed suit, basing their state legislation on the federal model. The Drug Control Act distinguishes among several categories of drugs based on their supposed abuse potential and medical utility. Drugs that supposedly have a high potential for abuse and no currently accepted medical use, including heroin, LSD and the other hallucinogens, and marijuana, may be used legally only in federally approved scientific research. In roughly half of the states, marijuana has been approved for medical use, but it remains illegal by federal law. In practice, the criminal justice system distinguishes between "hard" and "soft" drugs; it is unlikely that a first-time offender arrested for small-quantity marijuana possession will ever serve a prison sentence.
Drugs such as morphine, cocaine, the amphetamines, and short-acting
barbiturates are also regarded as having great abuse potential, even though they have accepted uses in medicine. Rigid prescription procedures maintain extremely tight controls over use. Drugs such as long-acting barbiturates and nonnarcotic painkillers are considered to have a lesser abuse potential, although they may lead to low physical dependence or high psychological dependence. These drugs have more relaxed controls, as do tranquilizers, and are classified as having low abuse potential. There has been a notable drop in the number of
prescriptions written for psychoactive drugs that were most often abused in the 1960s and early 1970s. By the mid-1990s the number of prescriptions written for barbiturates and the amphetamines was one-tenth of what it was in 1970. Many other countries have also placed severe restrictions on the prescribing of drugs by doctors and have thus greatly reduced the frequency of their abuse.
Restricting psychoactive pharmaceuticals brought about a reduction in the number of legal prescriptions written for them. A decline in the illegal street use of these same drugs lagged a few years behind the decline in legal prescriptions. In 1975, 11% of high school seniors said that they had taken barbiturates for nonmedical purposes during the previous year; in 1996, that figure was 5%. For methaqualone, completely outlawed in 1985, the comparable figures were 5% and 1%. The illegal use of amphetamines in the mid-1990s is half of what it was in the late 1970s and early 1980s. However, many forms of nonmedical drug use among the young have risen since the early 1990s.
The demand for drugs for illegal purposes remains high despite law-enforcement efforts. In 1996 there were about 1.5 million arrests on drug violations in the United States; drug arrests have nearly doubled over the past decade. Each year there are roughly 300,000 arrests on marijuana charges, and nearly 80% are for simple possession. The risk of arrest does not deter substantial numbers of Americans from selling and using illegal drugs.