Do Your Duty on AllMovie

In this silent police drama, a New York cop struggles to clear his name after he is convicted of tippling on the job. After the judgement, the poor fellow is demoted and humiliated in front of his peers. He feels so badly that he refuses to attend his daughter's wedding. She is marrying another officer and he doesn't want to embarrass them with his disgrace. Fortunately, before that happens, he is able to prove his innocence, bring the real culprits to justice, get promoted and give his daughter away at the ceremony.