Former Deputy U.S. Solicitor General Michael Dreeben will join Georgetown Law this fall as a distinguished lecturer, the school said today.

As the federal government’s top criminal lawyer, Dreeben argued more than 100 cases at the U.S. Supreme Court over 30 years, and also worked on Special Counsel Robert Mueller’s team investigating Russian interference in the 2016 election.

His year-long appointment is part of Georgetown Law’s Distinguished Visitors from Government Program.

Some of Dreeben’s most notable cases were in the area of search and seizure in landmark clashes over thermal imaging, DNA, GPS tracking, and cellphone searches.

Dreeben was previously an adjunct law professor at Georgetown and a visiting professor at Duke Law School.