Complex sentence: On 12 October 2009, Manuel Valls expressed "total disagreement" with the proposed decriminalization or legalization of cannabis proposed by Daniel Vaillant, whose plan involved depriving traffickers of a source of income.
Split into simpler sentences: On 12 October 2009, Valls expressed "total disagreement" with a proposal by Daniel Vaillant for decriminalization or legalization of cannabis. The plan involved depriving traffickers of a source of income.