As the Horseracing Integrity and Safety Act's (HISA) drug and medication control program has rolled out over the past few months, various questions have been raised over the mechanics of the new law. As such, the TDN has decided to maintain a Q&A on this new program comprising questions raised by readers, and answers fielded by representatives from either HISA or the Horseracing Integrity and Welfare Unit (HIWU), the enforcement arm of HISA's Anti-Doping and Medication Control (ADMC) program. The first set of responses can be read here. The second...