The option to enable counter-signing is a group policy that should first be activated. Navigate to My Groups and click edit. Open the Group Policy tab to activate the witness-sign option for your lab.
Check the option Witness Signature is required for all experiments and click Save
Once the witness signature option is active, experiments require a second signature before locking. When signing an experiment, you now get the option to assign a witness for counter-signing the experiment. Select the witness from the list of users in your lab, that should counter-sign the experiment. Note that only users with permission to witness sign experiments are listed. When an experiment is signed the experiment is locked for modification but requires the witness signature to be permanently locked.
The assigned witness will receive a notification on the dashboard and is added to the list of experiments that require a witness signature. If you also installed the eLABJournal Mobile App, you will also receive this notification on your mobile device.
On the signed experiment, the witness has the option to approve and witness sign the experiment or to decline and unlock the experiment. In the latter case, the user that created the experiment receives a notification to further update or add information to the experiment.
Once the experiment is counter-signed, the witness signature including timestamp is added to the experiment header. If you still need to include some information to a signed experiment, you can include a comment. If that option offers insufficient options, you can copy the locked experiment and refer to the original experiment by inserting an experiment link in the copied experiment. In this way, the full audit trail of data including correct timestamps remains intact in accordance with GLP guidelines and CFR 21 part 11 regulations.