The disruption at the Hay-
Adams in May involved Ignacio Zamora Jr., a senior supervisor who oversaw about two dozen agents in the Secret Service’s most elite assignment — the president’s security detail. Zamora was allegedly discovered attempting to reenter a woman’s room after accidentally leaving behind a bullet from his service weapon. The incident has not been previously reported.

In a follow-up investigation, agency officials also found that Zamora and another supervisor, Timothy Barraclough, had sent sexually suggestive e-mails to a female subordinate, according to those with knowledge of the case. Officials have removed Zamora from his position and moved Barraclough off the detail to a separate part of the division, people familiar with the case said.

Details about the Hay-Adams episode and related findings were provided by four people who have been briefed on the case, including two who have viewed summaries of the internal Secret Service review.