Police could be given another tool to deal with unacceptable behavior, under a November ballot measure Mayor Gavin Newsom will introduce today on sit-lie legislation at the Board of Supervisors meeting, spokesman Tony Winnicker said.

The measure will restrict sitting or lying on sidewalks citywide from 7 a.m. to 11 p.m., and provide access to social services for those who need it.

A warning must be given before a citation can be issued and exceptions will be made for free speech and assembly.