cover your tracks
US /ˈkʌvər jʊər træks/
UK /ˈkʌvər jʊər træks/

1.
coprire le proprie tracce, nascondere le prove
to hide or conceal evidence of one's actions, especially wrongdoing
:
•
After stealing the documents, he tried to cover his tracks by deleting all emails.
Dopo aver rubato i documenti, ha cercato di coprire le sue tracce cancellando tutte le email.
•
The politician was careful to cover his tracks regarding the scandal.
Il politico fu attento a coprire le sue tracce riguardo allo scandalo.