"From fiscal years 2005 through 2012, a total of 144 employees were arrested or indicted for corruption-related activities, including the smuggling of aliens or drugs, and 125 have been convicted. 20 About 65 percent (93 of 144 arrests) were employees stationed along the southwest border. Our review of documentation on these cases indicates that 103 of the 144 cases were for mission-compromising corruption activities, which are the most severe offenses, such as drug or alien smuggling, bribery, and allowing illegal cargo into the United States. Forty-one of the 144 CBP [Customs and Border Patrol] employees arrested or indicted were charged with other corruption-related activities. According to CBP IA [Internal Affairs], this category is less severe than mission-compromising corruption and includes offenses such as the theft of government property and querying personal associates in a government database for purposes other than official business."
"Border Security: Additional Actions Needed to Strengthen CBP Efforts to Mitigate Risk of Employee Corruption and Misconduct," US Government Accountability Office, Dec. 2012, GAO-13-59.