Thirteen motorists were arrested on suspicion of impaired driving in the week after Christmas.Police carried out roadside sobriety checks in Hamilton Parish, Smith’s, Devonshire, Pembroke, Paget, Warwick and Southampton, from Boxing Day until New Year’s Day.As well as the impaired driving cases, police arrested one person for possession of a bladed article and five people on outstanding warrants.Police said road sobriety checkpoints are not scheduled for this weekend, but warned that officers would be on the lookout for offences while conducting regular patrols.