Final answer:
The highest level of professional certification by TCOLE is the Masters Peace Officer Certificate, which requires meeting specific service years, education hours, and an exam.
Step-by-step explanation:
The highest level of professional certification by the Texas Commission on Law Enforcement Officer Standards and Education (TCOLE) is the Masters Peace Officer Certificate. To achieve this prestigious level, officers must meet stringent requirements, including specific years of service, completed hours of continued education, and passing of an examination. Achieving the Masters Certificate is a testament to an officer's dedication to their professional development and expertise in law enforcement.