House Speaker warns MPs that heated rhetoric is starting to cross a line

The referee of the House of Commons has given MPs a stern warning about their use of overheated partisan rhetoric lest they find themselves in a parliamentary penalty box.

Speaker Geoff Regan says he'll cut off MPs if their comments are couched in wording that veers into pointed, personal accusations during the daily question period.

For days, the Opposition Conservatives have referred to the trust fund and personal wealth of Prime Minister Justin Trudeau, as well as of Finance Minister Bill Morneau, in attacking the Liberals over the deep deficits they've run while in office.

The attacks sharpened after Trudeau remarked this week that low-income Canadians don't pay taxes, which the Conservatives argued showed how out of touch he is with everyday Canadians.

Before the start of Thursday's question period, Regan took two minutes to let MPs known he was going to start putting his foot down.

Regan said anyone who skirts the line between legitimate question and personal attack may be cut off and find their turn to question the government is passed along to another MP.