Dallas police Chief Eddie García said Thursday he’s begun mapping out how his officers will handle Texas’ new immigration law even though its future remains in flux.

After a dizzying week of back-and-forth court rulings, law enforcement agencies across Texas have expressed confusion and uncertainty about their mandate under Senate Bill 4, which empowers local law enforcement to handle a series of new state crimes for unauthorized migrants in the state.

Dallas’ top cop shared his concerns about the law, which a federal judge struck down as unconstitutional in February, prompting an appeal by Texas that is awaiting resolution.

García voiced concerns about how SB 4 could impact DPD’s community relationships but said there’s a bottom line: “If this passes, we must have policies in place,” he told The Dallas Morning News on Thursday. “We can’t prohibit enforcement of the law.”