Yes, it is a growing problem. From The Times 8 May
In the last decade annual recorded reports of stalking have risen from under 3,000 to more than 120,000 in England and Wales, but only 6 per cent result in a charge and 1.4 per cent of cases end in a stalker being convicted. Yet on average, two women are murdered each week in England and Wales, and research suggests that stalking features in 94 per cent of these cases. The police still don’t take harassment seriously and have almost no training to help them deal with this crime of psychological terror. Last year there were more than 8,000 calls to the National Stalking Helpline. Suzy Lamplugh Trust, the personal safety charity, warns that stalking is leading to depression, sleeping and eating disorders, self-harm, work absences and suicidal thoughts.