Price ceiling have never worked for anything. The only thing that they do is cause supply to dry up, and eventually the prices will skyrocket once those controls are removed.
No law of prohibition has ever worked either. The USA tried to prohibit alcoholic beverages between 1919 and 1932. The ONLY result was that crime skyrocketed, the price of alcohol went up, MORE people drank than did before prohibition, and it was a complete and total failure.
Look at the drug laws in the US. It is a felony in most states to posses any narcotic without a prescription, any marijuana, , etc. So, how well has making these drugs illegal worked? A much higher percentage of the population uses those drugs than did before they were prohibited. Organized crime makes billions of dollars every year off of those drugs, money which is not taxed. There are hundreds of murders every year related to drugs, many armed robberies by people desperate to get drugs, etc.
The prisons are full to overflowing, some states are going broke locking up all of the drug offenders.
Frankly, it would make sense to legalize all drugs, tax them and control their distribution, as is done with alcohol.
Make very, very stringent penalties (mandatory, so Judges can't wimp out on giving them): for driving under the influence; a minimum of 30 days in jail, storage of the vehicle being driven at the drivers expense (even a rental vehicle, let him pay the additional rental too) for A 2ND DUI; 6 months jail and storage; 3 years for a 3rd and 10 years and confiscation of the vehicle for any subsequent offenses.
Providing drugs to a minor, a minimum of 20 years in jail. Selling drugs to an adult, a minimum of 10 years in prison.
If you are a registered addict, you get your drugs free of charge from a government run program.
Inpatient treatment, totally free of charge BUT, requiring that a person be required to spend a minimum of 3 months as an inpatient, and be on legal probation for 3 years post treatment.
Growing your own marijuana, a $10,000 fine, split evenly between the agency discovering it (or the person reporting it) and the federal government. 2nd offense, $20,000 and confiscation of any vehicles owned by or used by the person convicted.
If the vehicles were either impounded, or confiscated, nobody would let a drunk or an addict use their vehicle. NOBODY! The Scandinavian countries do this, and they have very, very little problem of people driving impaired. In them, even one drink is considered to be impaired, the fine is horrible! AND, they impound the vehicle, no matter who it belongs to. That is where the "designated driver" originated.
Do the above, and drug related crime would virtually disappear. The government would make billions is taxes, there would be no market for illegal drugs, our prisons would largely empty out, and we would save many billions in expenses.
People WILL use drugs, so let them use clean, safe drugs that are not adulterated with God alone knows what, that won't kill them with an overdose, and that the government can control the quality and doseage of.