I would think that it largely limits the number of people who might be eligible. At first, I thought that you did not accept drug traffickers. I understand the difference between those who are trafficking for commercial gain and others. Usually, they are not drug users themselves, but in fact, a large number of those who traffic for commercial gain are also addicted to cocaine.
It does not seem to leave many possibilities for eligibility considering that there are not many offences that are only punishable with two years of imprisonment.