I missed this report from 2007 - NRA teams up with ACLU:
In a report issued in February, the Texas affiliate of the National Rifle Association joined the American Civil Liberties Union of Texas and the Texas Criminal Justice Coalition “to spotlight unlawful, unnecessary governmental encroachment on average law-abiding citizens.”
The report, “Above the Law: How Texas prosecutors are placing their own judgment over that of the Legislature and the law of the land,” found that district and county attorneys had instructed police officers to “unnecessarily” interrogate drivers and arrest them or take their weapons, “even if they are legally carrying the gun.”
“It’s all the self-interest of the job,” said Scott Henson, a civil liberties advocate and blogger who wrote the report. Mr. Henson contends that police officers are opposed to citizens’ carrying guns and that prosecutors depend on gun charges to strengthen weak cases and prompt plea bargains.