From the New York Times:
Some say laws against prostitution unfairly victimize women. A Canadian court recently ruled that laws preventing brothels endangered prostitutes by forcing them to work on the streets. And as the recent Secret Service scandal makes clear, in Colombia, prostitution is legal in “tolerance zones.” But in Spain, prostitution is essentially legal, and the nation has become a magnet for sex trafficking. Can legalized prostitution ever be safe and free of exploitation? Or should laws against prostitution remain?
And the same comments apply: Keep in mind that the essays are not all based on research; they are mostly opinion pieces. But, they're worth reading, at the very least, to get an understanding of the various viewpoints people have.
Read the essays here.