 In 1998, he became the MPDC chief.During his tenure, he was involved in several high-profile cases as chief of police in Washington, D.C., such as the Chandra Levy murder investigation.He has also been in the spotlight since the September 11 attacks focused attention on security issues around Washington, D.C.

Ramsey is a graduate of the FBI National Academy and holds undergraduate and graduate degrees from Lewis University in Romeoville, Illinois.