Motor insurance underwriting criteria are normally based on underwriting experience, including trends in the level, frequency and cost of claims for particular risks and classes of risk and are a matter of judgment by individual private insurance companies. Any changes in circumstances affecting the risk insured would have to be assessed by the insurer from an underwriting standpoint and the premiums charged would reflect any material increase in the risk. Increasing use of technology is being made by insurers in segmenting risk categories into more discrete groupings.