During the session, the share price was suspended limit-down, an automatic suspension system which kicks in when a share price is showing excessive volatility.
Ch Insp Darren Wareing, who is in charge of the North Wales Police roads policing unit, said many people did not realise they could still be over the limit the next morning after a drinking session.
The Transport Committee has its last session on the traffic management inquiry (how do you knock utility company heads together to limit holes in the road and curb congestion without road pricing etc...).
Just before Monday's session began, the judge issued a series of rulings that will allow Jackson expert witnesses to testify but limit some of their opinions.