You have a second degree? I am not aware if law schools accept your second degree. i suggest you contact the schools you are applying to find out.
I assumed you have one and only one undergrad degree..
Check out if you qualify for "mature' category. (5 years full time work experience)
This is a tough one to predict...
Any reason for low grades in other years? Is your B2 from earlier or later years?
cGPA 2.7 and B2 3.8 is quite hard to do unless you spent more than 4 years or you had some very bad years..