I'm looking for a scentific journal article that discusses how reliable radar detectors are for judging speed. If you have such an article please email it to me as an attachment at ralpert@tarrantcounty.com or fax it to 817 884 2499. Thanks

The Texarkana Court of Appeals says the first prong of the predicate can be accepted as correct:

Maysonet v. State, No. 06-01-0024-CR (Tex. App. Texarkana 2002).