Currently, JPRSS is following the HEC (Pakistan) policies regarding Turnitin Originality Report and Plagiarism.
A zero-tolerance policy on plagiarism issue. JPRSS aims for original script having 15% or below than 15% Turnitin Originality Report.
HEC relevant Weblinks:
How to Interpret Originality Report (Guidelines)
Guidelines on 'Ethics of Using Turnitin' for Administrators
Plagiarism Little Book