"But I can't take responsibility for criminal conduct of somebody inside the company"

This quote by Kenneth Lay recommends that he is not happy to take obligation for any criminal conduct that might have been committed by somebody within the company. This could be interpreted as an effort to distance himself from any misbehavior that may have taken place, along with to secure himself from any prospective legal consequences. It could likewise be viewed as an effort to protect the business from any possible damage that could be brought on by criminal conduct. By declining to take duty, Lay is trying to protect himself and the business from any potential legal or monetary repercussions. Eventually, this quote suggests that Lay is unwilling to accept any responsibility for any criminal conduct that may have happened within the business.