<P> Larry Ferguson wrote the screenplay after reading the article `` Undercover Angel '' by Lawrence Linderman in the July , 1981 issue of Playboy on an undercover agent named Dan Black . Black served as a technical advisor on the film and appeared as an extra in the movie . </P>
<P> Larry Ferguson wrote the screenplay after reading the article `` Undercover Angel '' by Lawrence Linderman in the July , 1981 issue of Playboy on an undercover agent named Dan Black . Black served as a technical advisor on the film and appeared as an extra in the movie . </P>
who is the movie beyond the law based on
who is the movie beyond the law based on
an undercover agent named Dan Black
an undercover agent named Dan Black