PHOENIX -- The heat is once again on Maricopa County Sheriff Joe Arpaio, whose illegal immigration crackdowns have earned him another critic.

Arpaio: I'm not going to stop

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VIDEO: Mesa wants notice before sheriff's sweep

LINK: Sheriff: "I make the decisions how to enforce the law"

VIDEO: Arpaio talks about sweeps

The Anti-Defamation League is not calling on Washington, D.C., to intervene, asking the Department of Justice to investigate the self-proclaimed "America's Toughest Sheriff."

The Anti-Defamation League calls Arpaio's recent controversial sweeps nothing more than racial profiling.

Arpaio has set up shop all over the county in the past few months.

He said his deputies and posse have arrested nearly 75 illegal immigrants in the last few operations alone.

As the number of arrests grows, so does the controversy surrounding the sweep.

"The last I heard, it's illegal to be in this country," Arpaio said. "They're criminals. Let's get that straight. We have been trained and we are enforcing the law. We haven't had any problems."

Once a location has been chose, the sheriff moved in.

Deputies scour the neighborhood, looking for traffic violations. When they find one, ICE-trained deputies use alleged probable cause to check the legal status of the occupants.

The Anti-Defamation League is questioning the sheriff's motives.

"Numbers of people have been detained during the 'sweeps,' but not all of them have been found to be undocumented," said A.D.L. Board Chairman David Bodney and A.D.L. Regional Director Bill Strauss. "This raises serious questions about the process and its effect upon the community."

"No. No, that was just one case -- possibly," Arpaio said. "We don’t' do that. We have the expertise to place holds on them. If that is wrong, let them prove it."

Several city officials where the sheriff has set up patrols have criticized the operations.

Recently, the Mesa police chief asked for fair warning if and when the sheriff comes to town.

While he has taken heat about wanting to go into Mesa, Arpaio said he's still going to move in.

"You don't really don't think I'm going to stop, do you? Never happen," he said. "In fact, I am going to increase my vigilance in going after the crime and also the illegal immigration problem."

Arpaio said several state legislators have asked for him to come in and clean up Mesa. He said he will be there. The question is when.