I worked for almost 7 years as a recruiter/scheduler in a
supplemental staffing agency, and our rule of thumb always was that if
one of our staff found a facility and applied on their own (even if it
was one of our clients), there was nothing we would do. However, if the
staff member applied only after we had sent them, then we were talking
temp-to-perm contracts or finders' fees. In my current position I have talked
with 2 different agencies and it has happened both times, people that
they send me have already applied. In those cases, I have told the
agencies that we have already reviewed the resumes and would pursue the
candidates independently of the agency. (One even sent a resume without
the name on it, but I knew the resume was one I had already seen when
the agency sent it.)
If the candidate truly does contact your
company independently of the agency, there should be no issue and you
should be able to treat the candidate as all others. However, if the
candidate only found about about your company because of the follow-up
questions you wanted the agency to ask, there is a definite issue
there. Generally agencies will have new staff members sign a statement that they will not solicit work from anywhere the agency sends them without first advising the agency of their intentions. Your candidate may find himself in a legal battle if he is trying to by-pass the system. I would try to get an honest answer from the candidate about how he heard about your company before pursuing any further.