Columnist: Vagrancy laws are supposed to reduce criminal activity, but they don’t. Making vagrancy illegal means transforming many innocuous everyday occurrences into crimes.
Evidence
Making vagrancy illegal means transforming many innocuous everyday occurrences into crimes.
Conclusion
Vagrancy laws increase crime while purporting to reduce it.
Evaluate
The argument presents evidence about "transforming many innocuous everyday occurrences into crimes" and then makes a leap to a new concept in the conclusion—increasing crime.
The argument doesn't clearly explain what "increase crime" is intended to mean. It's reasonable to think this means that entirely new crimes take place, ones that did not occur before the vagrancy laws were passed. For example, in a certain town there might be 10 cases a month where someone actually trespasses on another person's property, but once vagrancy laws are passed that number jumps to 30 actual instances of trespassing.
However, the evidence suggests that something different could be happening. It suggests that actions which were not illegal become illegal once vagrancy laws are passed. This could mean, for example, that napping under a tree in a public park is legal until vagrancy laws make it illegal. The actual number of people who nap under trees might stay exactly the same, or even decrease, but because it is now a crime, there is a sudden increase in the number of people who are arrested or fined for it.
The argument doesn't clearly explain the link between innocuous occurrences becoming crimes and an increase in crime. It's not clear what "increase" actually means in this conclusion.
Goal
A correct answer might point out how the phrase "increase crime" is used in an unclear way. It might point out that the argument doesn't establish a clear link between innocuous occurrences becoming crimes and an actual increase in crime.