Are there any other files in the FingerprintCatalogue_002 filegroup?
No. All file groups have been created with a single data file.
Does the filegroup house tables with LOB data?
No I don't think so. As this is all new to me and it is a 3rd party application/database installation I used the following query, which I got from the internet, to check for LOB data, feel free to correct it or suggest an alternative method:
select SO.Name as [Table], COL.name as [ColumnName], COL.system_type_id, TYP.name as [Type Name], SFG.groupname as 'Filegroup'
from sysobjects as SO
join sysindexes as SI
on SO.Id = SI.id
join sysfilegroups as SFG
on SI.GroupId = SFG.GroupId
join sys.columns as COL
on COL.object_id = SO.id
join sys.types as TYP
on COL.system_type_id = TYP.system_type_id
where sfg.groupname like 'FingerprintCatalogue%'
and TYP.system_type_id in (35,34,241,99)
order by SO.Name , SFG.GroupName