Crime is a social phenomenon that can not be separated from society itself. As a result, crime will be a problem facing every country ..
So what is the background so that crime continues to occur in the world ??
Well first we need to ask if this is really true. Are crime rates actually increasing? You mention crime in the world, so I assume your referring to crime in the who world. There was a book published by Steven Pinker in 2011 called The Better Angels of Our Nature: Why Violence Has Declined. There doesn't seem to be that much data available on a worldwide scale, but we can see that in the United States, many crimes are actually on the decline.
http://assets.pewresearch.org/wp-content/uploads/sites/12/2017/02/30142228/FT_17.02.15_crime_640px.pngI found this study here:
http://www.pewresearch.org/fact-tank/2018/01/30/5-facts-about-crime-in-the-u-s/. You can see that in the US violent crimes and property crimes have decreased significantly since 1993. Do you still think there's more crime in the world? If there isn't, but it seems like there is, why is that?