Depositions are sworn statements so they should be admissible if relavent or to impeach a witness. The age of the document does not matter.
I am a former federal and State prosecutor and now handle criminal defense and personal injury/civil rights cases. Feel free to check out my web site and contact me at (212) 385-8015 or via email at Eric@RothsteinLawNY.com. The above answer is for informational purposes only and not meant as legal advice.
As long as you can provide a foundation for the documents in question, they should be admissible.
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