Beachcroft Wansbroughs partner Helen Staines will attempt to clarify what deliberate concealment means as part of the Limitation Act 1980 in the House of Lords today.

Staines said the 1999 Court of Appeal decision in Brocklesby v Armitage & Guest meant that as long as the defendant made the professional mistake in question during a deliberate act, there was no time limit to when a claim could be brought.

"The decision is clearly not what parliament intended by the Act," she said.

"Without a clear signal from the House of Lords that the Brocklesby decision is wrong, they may be pursued for claims without limit in time."