Scott's license plate reads "DABIGDOG" but California plates can have a maximum of seven characters, not eight as shown.
When Laura (Lyndsy Fonseca) wants to check out Dave's (Reginald VelJohnson) office by herself, Scott (Josh Peck) tries to warn her off by telling her anything she finds would be inadmissible. For him, as a Federal Marshall, that would be true but search and seizure laws don't apply to private citizens. Anything she found on her own could be considered admissible. She could even turn it over to him after she left the building.