A criminal act is an act committed by a person against (tutaj brakuje pare slow) the existing law. Nowadays there are 'a lot of ' (to jest za bardzo dziecinne w tak powaznym pismie) kinds of crime all over the world, but they are punished in 'the' (ciekawe, ale zle) different way in every country.
In the past few years the number of the following criminal acts in Poland have decreased 'like' (calkowicie nie rozumiem uzycia tego slowa w tym sensie): shoplifting is 'the' (zle) crime when somebody steals something from a shop pretending (brakuje 2 slowa) doing shopping. The person may be sentenced even up to ten years. This crime 'happened' (zler) in big markets, Robbery connected with violence is the situation when somebody 'attacked' (zle) another person to achieve some financial benefits or other advantages, or (cos brak) car theft. (ale, theft jest theft, a robberry jest robbery)
However the number of homicides (cos brak) increased. In 'the' (zle) recent years the police 'manages' (zle) to detect a greater number of drug and economical related crimes.
I think that 'punishes' (zle) in Poland 'aren't' (nie uzywaj tego dziwactwa, napisz to tak jak ma byc) adequate for (cos brak) crimes.