Expert Witness Services

HRA historians have prepared expert witness reports and have provided expert testimony on a variety of historical topics, with an emphasis on Native American and environmental issues.We have also helped attorneys with identifying, selecting, and working with experts outside of HRA.

We understand the litigation process and the expectations for expert reports and testimony. Our expert reports are impeccably researched, focused, and accessible to attorneys and judges.

HRA’s expertise includes:

  • Superfund litigation
  • Natural resource damage claims
  • Native American issues
  • Water rights
  • Navigability
  • Trial support


Featured Projects

Thea Foss Waterway

Thea Foss Waterway The Thea Foss Waterway in Tacoma, Washington. Our historical research of activities on industrial waterways helps identify parties that contributed to contamination. HRA historians researched the industrial development of the Thea Foss Waterway...

Carten Creek Road

Carten Creek Road Map of the area around Carten Creek in Montana. HRA digs deep into the history of an area to shed light on present-day legal issues, such as this conflict over whether a road was public or private. HRA historians researched the history of a rural...

Gila River Adjudication

Gila River Adjudication Construction of Sacaton Dam on the Gila River Indian Reservation in Arizona. HRA provided research and expert witness testimony for the adjudication of water rights on the Gila River. As part of the General Streamwide Adjudication of the Gila...

Featured Team Members

Litigation Support

Water Rights and Adjudications

HRA provides historical research and writing for water rights litigation and adjudications throughout the West. We help clients determine priority dates and understand complex…

Native American Issues

HRA historians offer extensive expertise in Native American history and legal issues, ranging from treaty rights to jurisdictional matters.

Contaminated Sites

HRA helps clients identify companies, government agencies, and other entities that may be responsible for the cleanup of Superfund and other contaminated sites.