Complex boolean expressions are hard to read and so to maintain.
Noncompliant code example
With the default threshold value of 3
If ((condition1 AndAlso condition2) OrElse (condition3 AndAlso condition4)) AndAlso condition5) Then 'Noncompliant
...
End If
Compliant solution
If ((MyFirstCondition() OrElse MySecondCondition()) AndAlso MyLastCondition()) Then
...
End If
