What is the procedure to notify a corporation to not destroy any evidence because a civil legal complaint will likely be filed? Criminal complaints may also be pending, but that will be up to the prosecuting agencies. The corporation is located in the USA.
The evidence that needs to be retained includes documents in their possession, notes from their employees, detailed call records, and telephone recording they made.
Note that some of their recordings were made illegally, but their staff has confirmed they did record the calls. I'm not sure if that complicates things at all.
Also, if there are standard documents for this purpose available online, links to such documents are welcome.