Conversation so far:
What is one of the legal problems affecting Jean-Marie Le Pen?
In April 2000, Jean-Marie Le Pen was suspended from the European Parliament following prosecution for the physical assault of Socialist candidate Annette Peulvast-Bergeal during the 1997 general election.
What was another legal problem for Jean-Marie Le Pen outside his assault of Annette Peulvast-Bergeal?
In 2005, Jean-Marie Le Pen was fined 10,000 euros for incitement to discrimination, hatred and violence towards a group of people, on account of statements made about Muslims.
What types of war crimes were alleged in Algeria towards Jean-Marie Le Pen?
Jean-Marie Le Pen allegedly practiced torture during the Algerian War, when he was a lieutenant in the French Army. He denied it and won some trials.

Question: Why was Le Pen fined?
Self-contained rewrite: Why was Jean-Marie Le Pen fined?