Affidavit of service expert witnesses may testify and write reports on service of process, legal notice, and related topics. The National Association of Professional Process Servers reports on their website:
Proposed Maryland Legislation Harmful To People and Threatens Legal Due Process
The National Association of Professional Process Servers (NAPPS), along with the Mid-Atlantic Association of Professional Process Servers (MAAPPS), have grave concerns about pending legislation that establishes rules that allow for people to be served legal documents by mail rather than in person.
Read more: napps.org.