Using SonarCloud, the following code now trips with vbnet:S5944:
Private Shared Function InvestigationLookup(ii As IncidentInvestigation, answer As String) As IncidentInvestigation
If String.IsNullOrEmpty(answer) Then
ii.AnswerAsInvestigationLookups = Nothing
Else
Dim ils As New List(Of InvestigationLookup)
' Issue flagged above line...