A mum had to take action to prove not every road in Wales has a 20mph speed limit after an insurance firm voided her son’s insurance policy.

Welsh television presenter Jess Davies explained that her younger brother saw his car insurance voided as a result of the vehicle’s black box recording his speed and seemingly deciding he was constantly exceeding the speed limit. It meant their mother had to take some unusual steps to show the firm that not every road in Wales now had a 20mph speed limit.