Then you should from the start make a policy not to keep any logs. The only use of those logs is to prove that you are guilty so it makes no sense to keep them.
Even if you didn't do anything illegal, they can be used against you anyway.
That's the reasoning behind data retention policies. Lawyers don't see data older than N months. Even if you're not guilty lawyers can be costly when they need to analyze large amounts of data.
Even if you didn't do anything illegal, they can be used against you anyway.