Barton was a constable who worked under Inspector Chelmey and was involved with many cases related to Hershel Layton, an archaeology professor. After a case involving the prime minister, he started working up the ranks and eventually became the commissioner of Scotland Yard.
When Lucy was chatting with Deputy Commissioner Chan about her being assigned to what he called "a back-office", the Commissioner welcomed Lucy, advised her not to be discouraged by the Deputy Commissioner and informed her she had been assigned to the best Inspector of Scotland Yard. After Lucy ran off to introduce herself to her new superior, he told the Deputy Commissioner that he still had faith in Alfendi Layton, despite how unstable he may become. He later was seen giving a call to a certain person reporting Alfendi Layton's condition and Lucy's assignment to be his assistant.
The Beginning of Another Jigsaw Puzzle KillingsEdit
The Comissioner requested Alfendi and Lucy to investigate the murders of four member of a mafia family. When Alfendi is preparing the reconstruction of the case, he asked Lucy to watch him closely and to never let her eyes set off from him for a while. The unclear nature of the request baffled Lucy, but she followed it nevertheless.
After the case is solved, The Comissioner had a personal talk with Alfendi to praise him for his performance in the chase to which Potty Prof showed himself and he commented that Potty is not "Al". He praised him when the inspector showed the collection of the puzzles from the many previous cases, however, he still seems restless knowing that two pieces are still gone, meaning there are two cases left they have to look for.
When Lucy and Hilda pursued Alfendi to the Forbodium Castle, The Comissioner was said that he will come alongside with the back-ups Justin had called.
It turns out that The Comissioner is one of the person involved in the investigation of Jigsaw Puzzle Killings four years ago. As Alfendi Layton made pursue after Keelan Makepeace in Forbodium Castle in the case back then, he joined Justin Lawson and Hilda Pertinax to track them down as he wanted to see the end of the case himself. He broke through his way to the rooftop by using axe to an unopen door, only to find Alfendi and Keelan are both in bloodbath already. Due to this involvement, he is regarded as one of the suspect of the said case.
During the credit scene, it is shown that his huge appetite hasn't changed yet, and he is having a banquet with Deputy Commissioner Chan preparing bountiful of Chinese foods for him.
Later after the credits it was revealed that the person he's been calling to regarding information of Alfendi Layton is no other than Hershel Layton himself, as Alfendi's father. It appears that they have bonded closely as he now calls Hershel Layton by his first name, in contrast with his previous habit of calling him Professor. He stated that Scotland Yard might need his assistance once again "just like the old times".