The act of guarantee by aval itself couldnt eliminate any liability of debtors on commercial instrument,however,after the guarantor fulfill his guaranteed debt he may not only release from the liability on the commercial instrument for himself and warrantee,and his following debotors as well.

Accommodation paper bears functions that guarantee by aval cannot substitute.

Evidence preservation is a precautionary measure for preventing evidence from being eliminated, or preventing occurrences of obstruction to the application of evidence.

Compared with the international legislation,the evidence preservation system of China s foreign-related arbitration faces a great challenge and a great deal of problems,which demands amendments to fit the rapid development of China s foreign trade and the new needs of the foreign-related arbitration itself.

It is an important measure to support electronic evidence preservation.

This thesis integrates the provisions on the preservation of evidence in the main countries and areas belonging to the civil law family,and discusses the attribute of the preservation of evidence.

Preservation of network evidence is a significant way to ensure preservation of evidence of effectiveness.

We should firstly confirm the content and extension of basic concept in the process of building the system of preservation of evidence.

The perpetuating testimony system before prosecution, which is a part of the perpetuating testimony system, aims at the factuality, legality, and accuracy of proof.