Last week, Sheriff Thomas Hodgson suggested Somerville Mayor Joseph Curtatone should be arrested over his city's handling of immigration issues, and Curtatone responded by calling him a "jack-booted thug." This week, the two will square off during a panel at the University of Massachusetts School of Law.

Hodgson and Curtatone are among the speakers at a UMass Law immigration symposium Thursday which will also feature a keynote address from former Congressman Barney Frank.

The sheriff if Bristol County, Hodgson last week landed in the national spotlight when he told a congressional subcommittee that elected officials in so-called "sanctuary cities" that refuse to cooperate with federal immigration policies should be arrested.

Curtatone, whose city considers itself a sanctuary city, has been a vocal critic of Hodgson's stance, pushing back on social media and in interviews with local and national news outlets.

Other panelists are Newton Councilor Emily Norton and Sarang Sekhavat, the federal policy director for the Massachusetts Immigration and Refugee Advocacy Coalition.

The sanctuary city panel begins at 10 a.m. at the law school at 333 Faunce Corner Rd. in Dartmouth, followed by a 11:30 a.m panel on refugees and Frank's address at 12:30 p.m.