Article II Section 15 Pennsylvania Constitution
Article II Section 15 Constitution of the Commonwealth of Pennsylvania is about Privileges of Members. Article II is titled The Legislature, it has 17 sections.
Privileges of Members
The members of the General Assembly shall in all cases, except treason, felony, violation of their oath of office, and breach of surety of the peace, be privileged from arrest during their attendance at the sessions of their respective Houses and in going to and returning from the same; and for any speech or debate in either House they shall not be questioned in any other place.
See also: Article II Section 14 Pennsylvania Constitution