PHOENIX -- The Maricopa County sheriff's hotline to report suspected illegal immigrants has been ringing off the hook.

The hotline was launched about a month ago and has received about 1,200 messages, which include tips about family and friends, employers, day laborers, drop houses and crank calls.

Sheriff Joe Arpaio said there haven't been that many arrests. "And the reason is we do not go around knocking doors down."

Latino leaders and faith-based organizations want Arpaio to disconnect the hotline, saying it raises the chance of racial profiling.

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"We're going out of our way not to receive any allegations since the other side have formed four hotlines to go after me," Arpaio said.

The ACLU is critical of sheriff's hotline.

Dan Pochoda is the legal director of the Arizona ACLU. He says the sheriff's hotline in and of itself does not appear to be illegal.

"But it does appear that the goal here is to get the people based on their status and not because of their criminal acts." Pochoda said skin color appears to be the main indicator of status.

The ACLU is not taking any legal action right now. But Pochoda says the group is closely monitoring the hotline.