"in question" is correct and usable in written English. You can use it to introduce a phrase or clause that contains an item or concept you are discussing or inquiring about. For example: The details of the accident in question are still being investigated.
The snap in question?
The Stormtrooper in question?
The mother in question?
The painting in question?
The scene in question?
The conciliator in question?
The society in question?
The companion in question?
The animal in question?
The skill in question?
That's not even in question".
Ludwig does not simply clarify my doubts with English writing, it enlightens my writing with new possibilities
Simone Ivan Conte
Software Engineer at Adobe, UK