Officers seized electronic devices containing large volumes of data, books linked to nationalist and racist violent extremism, as well as chemicals and precursors.
Members of the public who believe they or others may be at risk of modern slavery or human trafficking can contact the AFP on 131 AFP (237) or via the confidential online form.
The crash killed 42-year-old mother Nancy Lefrançois and her 11-year-old son Loïc Chevalier, who were travelling in a passenger vehicle struck in the collision.