to follow rules or procedures strictly
suivre les règles à la lettre (suivre les règles à la lettre)
"The officer always goes by the book during inspections."
"L'officier suit toujours les règles à la lettre lors des inspections." (L'officier suit toujours les règles à la lettre lors des inspections.)
to become addicted or very interested in something
to say something without deep thinking or preparation
to discuss something without reaching a conclusion
to make people recognize your authority
later than planned or expected
to confirm information with someone