Kash Heed resigned his post as B.C.'s solicitor general again, just one day after being reinstated.

Heed told reporters the events have been "a whirlwind of circumstances," he said. "It's night and day and it's stormy. It's unpredictable this set of circumstances,"

Heed first resigned in April after revealing the RCMP was investigating inflammatory campaign pamphlets sent out in his riding last year.

A special prosecutor appointed by the Criminal Justice Branch, Terrence Robertson, cleared him of any wrongdoing on Monday. Charges were laid against two of Heed's campaign workers, including manager Barinder Sall.

Heed was reappointed to cabinet on Tuesday. Just hours later, Robertson resigned, revealing his law firm had contributed $1,000 to Heed's 2009 election campaign.

Robertson admitted he knew about the donation when he was appointed special prosecutor but when the RCMP asked him about it, he told them he felt there was no conflict of interest.

Robertson's law firm, Harper Grey LLP, is a regular contributor to the BC Liberal Party, donating $8,500 to the party's 2009 election campaign alone.

When news of Robertson's resignation hit, Heed initially announced he would hold his position, having been formally exonerated.

"I've done nothing wrong. It has gone through a process, a special prosecutor has ruled on that process," Heed said Tuesday. "I'm comfortable with that and I will carry on serving the people of British Columbia."

But NDP opposition critic Mike Farnswoth said Heed has no choice but to again relinquish his position.

"He has no credibility staying on as solicitor general," he said.

The Criminal Justice Branch is now looking for a special prosecutor to replace Robertson, who may once-again review Heed's role in the 2009 campaign scandal.

Pamphlet controversy

Heed was elected in a south Vancouver riding by less than 750 votes after being recruited as a star candidate by the B.C. Liberals.

The former Vancouver police officer and West Vancouver police chief was quickly appointed solicitor general and minister of public safety.

But his election came under a cloud last month over complaints about an inflammatory campaign leaflet mailed to Chinese-Canadian voters in his riding and two neighbouring ridings.

The Chinese-language mail-outs, which did not identify themselves as official campaign literature, accused the New Democrats of planning to legalize illegal drugs, including heroin and cocaine, and said the party would also consider bringing in an inheritance tax.

Opposition New Democrats have suggested Heed step down as MLA altogether and face a byelection, arguing the original vote was tainted.

With files from The Canadian Press