Sentence 1: Since 1992 the unit is a dedicated-time full police tactical unit and is now known as the Special Emergency Response Team ( SERT ) .
Sentence 2: Since 1992 the unit has been a full-time police - tactical unit and is now known as the SERT ( Special Emergency Response Team ) .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?