Two former U.S. attorneys from the Dakotas who built their brief federal careers around American Indian issues are putting their experience to work at a private legal firm.

Timothy Purdon of North Dakota and Brendan Johnson of South Dakota both stepped down as top federal prosecutors in March after spending much of their five-plus years tackling crime on tribal lands.

Now part of Minneapolis-based Robbins Kaplan law firm, Purdon and Johnson are looking to represent tribes on a variety of issues, such as gaming rights, commercial ventures, boundary disputes, government investigations and management of natural resources.

Purdon says tribes will continue to be involved in more complex disputes and the two lawyers feel it's important to stay connected to people and issues on the reservations.