Recreational drug possession is decriminalized in Portugal, but still illegal. You will still be fined if caught, and if you possess over a certain amount, charged with a crime. That being said, addiction has declined since the decriminalization.
If caught consuming (under a certain amount), the drug will be apreend and you can be required to present yourself before a comitte formed by a lawyer, a doctor and a social worker. It's possible to be fined but that it's not the primary objective.