Weird news - Woman beheaded over sorcery claims in Saudi Arabia

Witchcraft was a major problem for women in the medieval ages, with the official law and order system of countries actually trying women and killing them for the same. This was with the sanction of the Church, but was something that was stopped many centuries. However, even now, in many parts of the world, you hear of some poor lady or the other being accused of witchcraft (this provides somebody who is suffering an outlet to blame somebody for their problems, and when combined with societies where people believe in magic) and being killed. However, these are not officially sanctioned, and are more individual or mob actions.
So it was very surprising when I read this news article about a woman being beheaded in Saudi Arabia for practising sorcery. Does Saudi Arabia believe that a person could actually know magic, and yet not be able to save herself from being accused and executed for such a crime ? Apparently yes, since the news report makes it clear that the conviction was for forgery, which led to a beheading (link to article):

A Saudi woman was beheaded on Monday after being convicted of practising sorcery, which is banned in the ultra-conservative kingdom, the interior ministry said.
Amina bint Abdulhalim Nassar was executed in the northern province of Jawf for "practising witchcraft and sorcery," the ministry said in a statement carried by SPA state news agency.

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Sorcery

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Hunting for witches

The most famous hunting for witches were the Salem witch hunts in the early United States where a number of women were accused of being witches, and burnt at the stake. However, there are still many cultures where there is a belief in witches and ghosts; this turns out to be ghastly in many situations where somebody is accused of being a witch, and in a mob situation, the hapless person is killed in one way or the other; this can actually be used for person retribution against the accused - what better way to get someone out of the way and yet not be accused of anything:

In late May, news outlets in Kenya told the story of 15 people, mostly elderly women, who were murdered in a witch hunt near the town of Kisii. The killings shocked the nation. Villagers said more than 100 people gathered machetes and knives and stormed the village of Kegogi after midnight.
Belief in witchcraft is strong in this part of Kenya. A few days before the incident, a group of schoolchildren reportedly found a book in their school that listed all the people in the community who would soon die and the witches who would be responsible. The area is one of the most populated rural areas in Kenya. Over the years, farming plots have been divided and subdivided. Omache and others say they believe witch hunts are about greed and vendettas in a place where almost everyone struggles to survive.

In all cases, the reason has either to with a fear that turns into a mob action, or with the attempt to get somebody out of the way.