The safety and defense sector operates in contexts where evidence authenticity is fundamental to protecting people and infrastructure. Law enforcement, private security agencies and international organizations need reliable documentation collected in the field. TrueScreen provides a digital certification platform that captures photos, videos and documents with digital signatures, certified timestamps and immutable metadata. Certified evidence holds legal validity under the eIDAS regulation, the Budapest Convention on Cybercrime and ISO/IEC 27037 standards. For security operators this means documenting inspections, patrols, operations and critical situations with evidence that has full probative validity.