Studies of drug-related crime have often overlooked drug law offences as the link between drugs and crime is of a very different nature — in this case drugs and crime are linked by definition in the law, rather than by any effect of one behaviour on the other.
Is minic nach dtugann staidéir choire atá bainteach le drugaí aird ar chionta in aghaidh na ndlíthe drugaí ós rud é go bhfuil an nasc idir drugaí agus coireanna an-éagsúil — sa chás seo nasctar drugaí agus coireanna ag sainmhíniú sa dlí seachas ag éifeacht iompair amháin ar an iompar eile.