After a distinguished career as jurist and professor at the Bucharest Academy of Economic Studies, ambassador to Germany, and Minister of Industry and Commerce, he became a victim of the Communist regime, dying at Sighet Prison.

Commentaire critique de la legislation rurale en Roumanie, Angleterre, Irlande, Allemagne", written under the direction of André Weiss.

In 1908 Tașcă returned to Paris, where he received in 1910 a second doctoral degree, this time in Economics, with thesis "Les nouvelles réformes agraires en Roumanie".

When the Central Powers occupied Bucharest in World War I, he took refuge in late 1916 in Moldavia; conscripted into the Romanian Army, he served as diplomatic courier between Iași and Saint Petersburg.

Tașcă was arrested on August 1, 1950, by the Communist authorities and incarcerated in the notorious Sighet Prison, Maramureș County in cell number 58.