I may have misunderstood, but I believe the Behind the scenes section says that we do not know his first name in-universe. Therefore, it should be renamed PC Smith (not Smith (Ripper's Curse) as there is another.
Talk about it here.
PC Smith was a police constable in 1888. Lewis told "Sir Charles Warren" that Smith had seen Elizabeth Stride alive a half hour before her death in the company of a fair-haired man. (COMIC: Ripper's Curse)
Behind the scenes
Neither William Smith nor Henry Smith are identified by anything beyond their last names and titles in Ripper's Curse.