Duty of the Lawyer to a Client
Witnesses should always testify truthfully and should be free from any financial inducements that might tempt them to do otherwise. A lawyer should not pay or agree to pay a non-expert witness an amount in excess of reimbursement for expenses and financial loss incident to his being a witness; however, a lawyer may pay or agree to pay an expert witness a reasonable fee for his services as an expert. But in no event should a lawyer pay or agree to pay a contingent fee to any witness. A lawyer should exercise reasonable diligence to see that his client and lay associates conform to these standards.