A Dickson County man facing his second DUI charge is challenging the constitutionality of a state law that allows law enforcement officers to force suspects to submit to a blood test. The attorney for 47-year-old James David Glass of Hayshed Road in Charlotte has filed a motion to suppress the results of a blood test taken following his arrest for DUI in June 2012. Glass was previously convicted of DUI in 2009 in Cheatham County, according to a February indictment. During a hearing in Dickson County Circuit Court Wednesday, defense attorney Leonard Belmares argued that the law that allows police to force suspects with a previous DUI conviction to submit to a blood test violates the U.S. Constitution’s 4th Amendment protection against unlawful search and seizure. Deputy Josh Young testified he arrested Glass at the Highway 48 Market in Charlotte after he failed several field sobriety tests. But Glass refused to submit to a breath or blood test, in violation of the state’s implied consent law. After learning that Glass had a previous DUI conviction, Young said he took Glass to Horizon Medical Center where he was forced to submit a blood sample. Belmares argued that the deputy had appeared before a magistrate seeking an arrest warrant for Glass and had ample opportunity to request a search warrant before forcing Glass to take a blood test. But Assistant District Attorney Brooke Orgain argued that Tennessee law allows a mandatory blood draw for any DUI suspect with a previous DUI conviction. A Williamson County judge recently ruled the Tennessee law unconstitutional but Orgain said that ruling is being reviewed by the state Attorney General’s office for an appeal and the law remains valid at this time. Following Wednesday’s hearing, Judge Larry Wallace took the motion under advisement, saying since it is a constitutional question he wants to do more research into case law. Wallace did not say when he expects to hand down his ruling. Glass is scheduled to stand trial July 11 on charges of second offense DUI, driving on a revoked license and violation of the implied consent law.