This link is to ANIMAL's blog, written in Portuguese. Essentially, it sounds like they are having the same issues as we have in the US regarding dog fights and dog attacks.
There are dog fights and dog attacks in Portugal and, per the December 5 post, the government came up with some legislation without consulting any animal rights groups. ANIMAL says that the legislation is not effective and is too loose. Plus, the government is demonizing certain breeds of dogs even though they are very much victims.
At least they are doing something about it. I'm pretty shocked about that. In the Azores, where my family is from, I don't think there are any laws whatsoever.