On his first day in the Manitoba legislature, Premier Brian Pallister came under attack for his Costa Rican companies and conflict of interest rules.

NDP MLA and justice critic Andrew Swan said every MLA must disclose any corporation they own, but Pallister had not disclosed two Costa Rican companies he owns.

"How can the premier of this province talk about transparency and accountability when he has not disclosed things entirely in his own knowledge and control?" said Swan.

Swan said Pallister didn't disclose his assets statement in the last session of the Legislature.

"A search of the forms in the clerk's office, which I did this morning, confirms he has still failed to disclose these corporations," said Swan.

Pallister said he's complied fully with the rules of disclosure.

"I would encourage Mr. Swan to not try re-fighting the gutter politics of the last third of his election campaign again. I don't think it serves anyone in public life very well," said Pallister.

Swan wants a judge to look into whether Pallister is breaking the law.