"Anyone who has purchased a wand from Wagstaff is advised to turn it in immediately, before it explodes."
-- an unnamed Ministry of Magic spokesperson from the Department of Magical Equipment Control (DP1)
Faulty Wands Recalled is a news article appearing on page 1 of the Daily Prophet (DP1).
The Department of Magical Equipment Control issued a warning about defective wands being sold in Diagon Alley by “Honest” Willy Wagstaff, who is also suspected of selling sub-standard cauldrons to the public
The wizarding community are told that they should only buy wands bearing the Department’s stamp, as they are guaranteed to be safe (DP1).
The Department of Magical Equipment Control is not one of those mentioned in the later books that set out the organisation of the Ministry of Magic departments. Would the stamping authority have extended to the wands that Mr Ollivander stocks in his shop in Diagon Alley? None of the wands described there or later mention a visible Ministry stamp.
Although the date printed on the first Daily Prophet Newsletter (DP1) is 31 July 1998, the timeframe for this event is 1992-1993.
From the Web
Writing by J K Rowling on Pottermore: The Daily Prophet