An inquest was held at Milford Haven Town Hall on Monday into the circumstances which led to the death in a road traffic accident of three teenagers last November. The incident occurred shortly after 3 pm on Saturday afternoon, November 20, near South Treffgarne farm on the B4313 Tavernspite-Princes Gate road when a P registration Volkswagen Golf tdi was involved in a collision with a nearly new Land Rover Discovery. Driving the car was Jason Edward Hartt, aged 18, of Blaenffynnonau, Whitland, who had his girlfriend, 14-year-old Tammy Anne-Marie Williams, of 1, Gladstone Terrace, Trevaughan, Whitland, by his side and a second passenger, Jonathon Thomas Owen, also aged 14, of Gwersyll, High Street, Bancyfelin, in the back seat. The driver of the Discovery was Paula May Kemp, of Trecenydd, Caerphilly, with her husband, Paul, as a front seat passenger. All three sustained multiple injuries. Jason died in the incident, Jonathon later at the West Wales General Hospital, Glangwili, and Tammy in Cardiff the following day. Both Mr. and Mrs. Kemp suffered severe leg and shoulder injuries and were treated at Withybush General Hospital, Haverfordwest. Evidence was given that the weather was "murky" with a slight drizzle, but the road conditions and visibility were considered to be good. Giving evidence to the court, Mrs. Kemp stated that they kept a weekend caravan at Pendine and, on the Saturday morning, they has visited Haverfordwest to do some early Christmas shopping, and after taking lunch in Narberth, were returning to their caravan when the accident occurred. There was, she said, not a lot of traffic about and when she saw the car coming round a curve in the road towards her, and veering to it's incorrect side, there was no time to take avoiding action and she immediately braked and may have been stationary at the time of the impact. Mr. Kemp stated that the car was being driven "very, very quickly and it was obvious that there was going to be a collision". One of the first on the scene was Jason's father, Henry Arthur Joseph Hartt, who was driving a cattle lorry at the time and he tried to resuscitate his son whom he found trapped between the dashboard and the bodywork of his car and had "nowhere to go". He said that Jason was the youngest son from his first marriage and he had lived with him for about three years. He was learning his trade and presently lived in a mobile home at the farm whilst part of the farmhouse was being rebuilt. A close friend of the car driver, Paul Thomas, said he had spent part of the previous evening with Jason and Tammy and that Jason had been drinking quite a lot of vodka - with lemonade or blackcurrant. He was also aware that Jason took drugs. Forensic tests confirmed this as samples of blood and hair, taken from the deceased's body, indicated the use over a period of time, and very recently, of amphetamines and ecstasy. Examinations carried out at the scene of the crash by PC Peter Jones, a specialist collision investigator, revealed that the car appeared to have strayed into the oncoming lane resulting in a head-on collision. There were no pools of standing water on the road and the Discovery ricocheted some 10-feet after the impact. PC Jones stated that the vehicles would have been about 45 yards apart a second before impact and he considered the car may have been coming around a "not particularly severe bend" at between 65-80 mph. He added that what he saw was amongst the worse damage to two vehicles in his 20 years experience of dealing with such matters. Mr. Henry Hartt (the car driver's father) challenged the witness over the severity of the bend and, what he considered to be, an adverse camber in the road. Warning signs have since been erected, he said. Summing up, the coroner, Mr. Michael Howells, said that the indications were that most users of amphetamines experienced a warm euphoric glow, lasting four to six hours, following which co- ordination becomes impaired and driving or operating machinery is dangerous. Having considered expert evidence, and that of a number of witnesses at the scene, Mr. Howells returned a verdict of death by misadventure on Jason Hartt, and of manslaughter on Tammy Williams and Jonathon Owen, both of whom, he said, were unlawfully killed by Jason Hartt who was unfit to drive due to the use of drugs.