Did King James have any words put into the book of Deuteronomy in the translation of the Bible? I have been told that there is a letter held by the University of St. Andrews, Scotland from King James telling the translators to include words against witchcraft; this being a follow-on from the persecution of those people who were pagans or followers of the dark arts. As a Christian and a firm believer that the Bible is the true word of God, I find it difficult to believe that what I have been told is right.
Therefore my question is this: Did King James ever tell those translating the Bible to include anything that was not in the original Hebrew OT or the Greek NT?
King James VI of Scotland (who later became King James I of England) tried to prove that witches existed and that the Bible said they must be killed.  James developed an obsession with witchcraft from an early age, blaming witches for the death of his mother, Mary Queen of Scots.  In 1597 he published a book that he had written on the subject of witchcraft, his Daemonologie.  After the union of the Scottish and English crowns in 1653, James’ obsession with witches spread into England.  As a result, many women were put on trial, tortured and executed.  More information here: Daemonologie.
He used Exodus 22:18 as justification for his witch-hunts and executions: “Thou shalt not suffer a witch to live.” (KJV)
The NIV reads: “Do not allow a sorceress to live”.
A female sorcerer is a witch, a female practiser of magic, according to various dictionaries.   The male version would be a wizard.
As for tampering with the book of Deuteronomy 18:10-11, I doubt there is any evidence to support the claim that King James wanted “to include words against witchcraft.”  Below is the wording from the King James Version, followed by the New International Version translation:

There shall not be found among you any one that maketh his son or his daughter to pass through the fire, or that useth divination, or an observer of times, or an enchanter, or a witch, or a charmer, or a consulter with familiar spirits, or a wizard, or a necromancer. (KJV)


Let no-one be found among you who sacrifices his son or daughter in the fire, who practises divination or sorcery, interprets omens, engages in witchcraft, or casts spells, or who is a medium or spiritist or who consults the dead. (NIV)

The KJV says “a witch” while the NIV says “engages in witchcraft”.  Someone who engages in witchcraft is a witch.
I have no idea whether St. Andrews University has a letter from King James asking for the Bible to be changed with regard to witchcraft and witches.  Unfortunately, because of the Covid-19 pandemic, I doubt any enquiry about that would be dealt with anytime soon.  I think the University is in lockdown.
Here is the link to St. Andrews University Library: https://www.st-andrews.ac.uk/library/
The phone number (in the U.K.) is 01334 462331