A PROMINENT human rights lawyer has taken on the case to stop a nuclear waste dump from being forced on the Territory.

Sydney-based lawyer George Newhouse spent the Easter weekend in Tennant Creek gathering evidence to stop the Muckaty Station waste dump.

"The evidence we heard indicates that a proper process may not have been followed," he said.

Mr Newhouse last year successfully convinced the Federal Court to put an injunction on a $138 million deal to sign up 16 Alice Springs town camps to 40-year leases.

Melbourne-based lawyer Stephen Leonard was also in Tennant gathering evidence for the upcoming legal battle.

"There is a genuine dispute occurring within this community as to who is entitled to speak for the proposed site, the contract with the Commonwealth and the alleged approval," Mr Leonard said

"There is obviously no group consensus on this issue," he said.

The Australian Greens spokesman Scott Ludlam welcomed the upcoming legal challenge.

"Human Rights and environmental lawyers from around the country agree there may be a case to mount a challenge," Mr Ludlam said.