Zimmerman was taken into custody the night of the shooting. The police followed all the proper procedures. This is from TM wiki page. "Zimmerman was handcuffed at the scene of the shooting and taken to the Sanford police station for questioning, arriving there at 7:52 p.m. according to a police video.[12] His gun, a black Kel-Tec PF-9 9mm semi-automatic pistol, taken from him by Officer Smith at the scene, was placed into evidence.[90][91] Zimmerman was interviewed by Investigator D. Singleton and by Detective Chris Serino on the night of the shooting.[11][92] He also underwent voice stress analysis, a type of lie detector test, on the night of the shooting.[81] Crime Scene Tech D. Smith photographed his injuries and hands and collected gun shot residue. Zimmerman's clothes were taken as evidence after his wife arrived with a change of clothes.[93] The day after the shooting, Zimmerman performed a videotaped reenactment of the incident for police.[81] Zimmerman was not given a drug or alcohol test.[79] Peter Bella, a retired Chicago Police forensic investigator, told The Washington Times, "Except for DUIs, police cannot test suspects for drugs or alcohol, unless the accused demands or consents to it, or they get a warrant".[94][95][96] The police did not suspect that Zimmerman was under the influence of drugs or alcohol, and he was never asked to take such a test."