He was first elected to the Belgian Parliament in 1985. From 1985 to 1992 Dewael served for the PVV as Flemish minister of Culture in the governments led by Gaston Geens (II, III and IV). After the defeat of the liberals at the 1992 elections, Dewael served as an opposition MP until the liberals regained power in 1999.
When Kurdish militant Fehriye Erdal was sentenced to 4 years' imprisonment by a Bruges court on 28 February 2006, it turned out that she had shaken off the Belgiansecret service, which had had the responsibility of following her since 23 February 2006 (Erdal had been under house arrest since 2000). Both the Minister of Justice, Laurette Onkelinx, and the Minister of the Interior, Patrick Dewael came under fire for this incident.
Patrick Dewael lives in Tongeren, a town of which he is also the mayor.
Patrick Dewael was married to Marleen Van Doren, with whom he has three children. On 24 August 2005 Dewael released a press communiqué in which he announced that he was leaving his wife for VRT journalist Greet Op de Beeck [nl]. On 19 July 2019 he married Op de Beeck.[2]