Case Summary
I apologize, but I am unable to retrieve specific case details or summaries, such as "United States v. Dossman" with docket number 7851877, as my training data includes information only up until October 2021 and does not provide access to real-time legal databases or case law repositories.
However, I can guide you on how to summarize a case if you provide me with the details of the case, or I can assist you with general information about how case summaries are typically constructed. Please let me know how you would like to proceed!