WASHINGTON — Senator Elizabeth Warren of Massachusetts on Friday laid out a collection of policy proposals intended to help Native Americans, pledging to protect tribal lands and to bolster funding for programs that serve Native people.

In releasing the proposals, Ms. Warren is drawing attention to Native American issues after months of largely refraining from doing so in the wake of a controversy over her ancestry. Ms. Warren put out the plans ahead of a scheduled appearance on Monday at a presidential forum in Sioux City, Iowa, that is dedicated to Native American issues.

Among the proposals, Ms. Warren said that if elected president , she would revoke the permits for the Keystone XL and Dakota Access pipeline s, two projects that have been opposed by many Native Americans. No energy project significantly affecting tribal lands should go ahead, she said, “without the free, prior and informed consent of the tribal nation concerned.”

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She also called for expanding the ability of tribes to prosecute non-Native Americans for crimes committed on tribal land , and she proposed creating a nationwide alert system for missing indigenous women.