Translate the following English sentence to French:
"Under the terms of the Tampere conclusions, environmental crime is one of the areas specifically mentioned, on which efforts must be concentrated in order to establish common definitions, charges and sanctions between the various national criminal laws."
Et, aux termes des conclusions de Tampere, la criminalité environnementale est l'un des secteurs expressément visé dans lesquels il convient de concentrer les efforts afin de convenir de définitions, compensations et de sanctions communes entre les législations pénales nationales.