Thanks for the feedback it is reassuring that others also think there is something wrong here! I've emailed the law society though when I have done this before they tend to be more on the side of the solicitors, barristers etc than the public. But looking at the ICO website I will ask the solicitor who had my information for their advice, as in my view they should have protected my data better and perhaps I can approach the ICO on this basis.
If anyone in the legal profession does know of what search would have been done and any terms of use attached to this, I this would be appreciated. Trying to confront a barrister is not something I will do lightly so I'd like to have as much supporting information as I can as they make a fulltime job of putting their arguments forward of course.