Omitting Grades?

Hello! I just had a rather random question that came to mind. Do Caribbean Medical Schools have access to information regarding where/when you took classes that is NOT provided to them by the applicant? For example, I took classes my Freshmen year of college at a local CC that I did poorly in. I then moved and took classes elsewhere. If I did not include that first CC... would they even know? I understand the ETHICAL dilemma on this one, but I am genuinely curious as to what's stopping... Omitting Grades?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums