For the most part, I would say yes.
I mean a place like BET365 that has over 50 walk-in joints in and around the London area and been around for years would have to be considered safer IMO.
But the locale of a book is only one thing to consider in evaluating a book for safety.
Many factors to be objectively looked upon by the person investing their money with any book.
With any book in the world, none are ever 100% safeproof.