Per this biased Associated Press article, Sheriff Joe Arpaio of Maricopa County, Arizona helped deport more than 26,000 illegal aliens under the 287g program. That's of course without that state's new immigration law, which is set to take effect tomorrow. Maricopa was responsible for about one-quarter of all those deported under 287g (115,841 total); 64 local agencies are part of the 287g program.

Also:

Joanne Lin, legislative counsel for the American Civil Liberties Union, said it is alarming that one Arizona county is responsible for a disproportionate share of deportations.

The Los Angeles County's Sheriff's Office, a distant second to Maricopa, helped find 13,784 immigrants who were later deported or left the country. The Sheriff's Office's agreement with the federal government allows it to check its jails for deportable immigrants, but not to enforce immigration laws during street patrols. A renewal of the agreement is under negotiation.

An estimated 10.8 million people, about 26 percent of the state's population, are living illegally in California, compared with 460,000, about 12 percent, in Arizona.

"These statistics bear out that you have rogue sheriffs in certain counties that are bent on targeting immigrants," Lin said.

Obviously, the AP's statistics are wrong, rendering Lin's concerns even more questionable than they would be with the correct statistics. And, what she refers to as "rogue" is simply effective immigration enforcement rather than what the ACLU would prefer: little or no enforcement at all.