What problems did prohibition cause

purchasing alcohol of dubious origins and purity - so people could get arrested for doing something illegal or could get sick. It also help organized crime get a strong grip on the country as they controlled the alcohol and many politicians.

please can i have a brainliest

 Well people still wanted to drink, so they had to do so illegally which meant sometime purchasing alcohol of dubious origins and purity - so people could get arrested for doing something illegal or could get sick.  Also, organized crime got stronger and more gangs and crime groups were formed.