All breaches of motoring law (which the exception of parking violations in areas where the local authority has taken over control of parking) are criminal offences.
'Driving without due care and attention' is a criminal offence, just as much as speeding, causing an obstruction, shoplifting or murder are.
If your question relates to the creation of a 'criminal record', matters dealt with by fixed penalty notices don't normally count (although they could still show up on an enhanced CRB check if a senior police officer deemed the information to be relevant). Any conviction before a court creates a criminal record.
Chris