DOI

Litigation & Policy Attorney; FOIA Manager

Prior to joining PEER, Colleen was an Assistant District Attorney for the Suffolk County District Attorney’s Office in New York. She has also worked, clerked, and interned for multiple government agencies and non-profits, including the United States Department of Justice, the Office of the New York State Attorney General, the Natural Resources Defense Council, and Defenders of Wildlife. Colleen also volunteered as a Park Interpreter with the National Park Service at Theodore Roosevelt Island in Washington, DC. Colleen received her law degree from Georgetown University Law Center, where she was the Vice President of the Environmental Law Society and Senior Notes Editor for the Georgetown Journal of Gender and the Law. She received her bachelor’s degree summa cum laude in International Affairs from The George Washington University’s Elliott School of International Affairs. Colleen enjoys backpacking and camping trips, playing board games, and reading mystery novels.

COMMENTARY | Public Lands Unprotected: The Impact of Department of the Interior Law Enforcement Firings

by Guest Contributor | April 11, 2025
With understaffing of law enforcement officers and rangers already a severe problem, the new wave of terminations is exacerbating under-enforcement into crisis status ...

Sudden Freeze on Interior Department Spending

by PEER | March 4, 2025
Parks, Refuges, and Range in Chaos After Spending Authority Reduced to $1 ...

Letter to Interior Secretary Burgum – National Park Service Probationary Employees

by PEER | February 25, 2025
Letter to Interior Secretary Doug Burgum regarding the firing of National Park Service probationary employees ...

COMMENTARY | Anonymous Activism and Whistleblowing in the Age of Trump

by Colleen Zimmerman | January 24, 2025
PEER anticipates a flood of requests for our legal services during Trump 2.0. Here's an overview of our approach to anonymous activism and whistleblowing ...
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