Banksy is an anonymous England-based street artist, vandal, political activist, and film director, active since the 1990s. His satirical street art and subversive epigrams combine dark humour with graffiti executed in a distinctive stenciling technique. - Courtesy of Wikipedia
So who is the street artist known as Banksy? Rumors regarding the graffiti and stencil artist Banksy's identity include Robin Gunningham, Thierry Guetta aka Mr. Brainwash, Robert Del Naja aka 3D, Jamie Hewlett, and/or a team of artists.
Who or what is Banksy's Pest Control Office? According to the official website, "Pest Control is a handling service acting on behalf of the artist BANKSY. We answer enquiries and determine whether he was responsible for making a certain piece of artwork and issue paperwork if this is the case. This process does not make a profit and has been set up to prevent innocent people from becoming victims of fraud."