Cincinnati ? Customers at some suburban pizza parlors are getting something extra with their pepperoni and mushrooms: wanted posters of parents accused of failing to pay child support.

The idea came to Cynthia Brown, executive director of the Butler County Child Enforcement Agency, while she was ordering pizza.

“It suddenly dawned on me that most people running from the law don’t eat out, they order pizza,” said Brown, whose county is north of Cincinnati.

Enforcement agencies across the country use a variety of methods to locate support scofflaws and collect past-due payments. Virginia has issued subpoenas to cellular phone companies seeking addresses and phone numbers. California’s Kern County seizes and auctions parents’ vehicles, with proceeds going to the children, said Kay Cullen, a spokeswoman for the National Child Support Enforcement Association.

State child support agencies collected more than $23 billion in child support for 17.2 million children in 2005, but the cumulative past-due child support since the agencies were first formed more than 30 years ago is $106 billion, Cullen said.

The Butler County sheriff’s office served 1,224 nonsupport warrants last year, said sheriff’s Sgt. Todd Langmeyer. The county has about 350,000 residents.

Since the first pizza posters appeared in August, they have led to one arrest, Langmeyer said.