LOP Enrollment Deadline: 2 January 2026

This test is still open for enrollment via credit card only. Please select credit card as the payment method during the checkout process if your order includes any Late Order Purchase (LOP) tests.

Participants will examine questioned documents and report results using a 5-point scale of conclusions.

Sample Description: A set of original documents that may encompass any aspect of the questioned documents field, including but not limited to ink markings, impressed writings, printing process identification, and possible handwriting comparison.

Samples ship in March.

This test is included on CTS' Scope of Accreditation to ISO/IEC 17043.