The "paraffin test" also known as the "Dermal Nitrate" or "diphenylamine test". It was introduced in the United States in 1933 by Teodoro Gonzalez of the criminal identification laboratory, Mexico City police headquarters. In this test, the hands were coated with a layer of paraffin. After cooling, the casts were removed and treated with an acid solution of diphenylamine, a reagent used to detect nitrates and nitrites that originate from gunpowder and may be deposited on the skin after firing a weapon. A positive test was indicated by the presence of blue flecks in the paraffin.
Tommy: Listen I ah took off a couple of hours, is that a parole violation? Ed: Depends what did you with those hours. Tommy: Listen ah can I talk off the record. Ed: I'm sorry Tommy no. Tommy: Well listen I mean it's okay, nothing happened you see, I just don't want any trouble because of intent. Mark: Intent? Well what was your intent, Tommy? Tommy: Well I went to see this guy and he never showed up. Ed: What guy? Tommy: Billy Gresham, ah I met him in prison. Okay, I know, I know, condition of parole, condition eight you should have avoid association with former inmates of penal institution unless specifically approved by your parole officer. Well you see the guy was in trouble and called me up and he says ah come right down and I didn't have any time to check with Brand. Ed: Where did you meet with him? Tommy: I told you he didn't show up. I waited almost two hours and he never came. Mark: Anybody see you? Tommy: You kidding man, on Six and Market, there's alot of people going by. What you asking for an alibi? Mark: Right. Tommy: What do I need an alibi for? Ed: I'll tell you on the way to the lab. Do you want to get your coat? Tommy: Lab? What for? Ed: A paraffin test. Tommy: That's to see if I fired a gun. Ed: That's right Tommy.
Don: It's true. I hate pushers. No telling when there's some sweet innocent selling pot or a mobster selling heroin, makes no difference to me. But I'm a pro Sergeant, I sit on my emotions the same way you sit on yours. I do my job objectively. Ed: Can you really be objective? Don: It's hard but I manage. Ed: Watching your sister suffer. Don: I've managed. Ed: Knowing that when she isn't in the grip of that nightmare that she has a daily fear of it. Don: What do you want from me? Ed: I want you to be honest. We checked the record now you have thieves, bad check artists, burglars all kinds of people on your case load and they violate their paroles as much as Tommy, but your not suggesting sending them back, now why not Mr. Brand? Don: I do my job.
This is Barbara Anderson's last episode, as she left the series following a contract dispute. She would reprise her role in the reunion movie twenty-two years later.
S 3 : Ep 26
Aired 4/9/70 (48:09)
S 3 : Ep 25
Aired 4/2/70 (48:09)
S 3 : Ep 24
Aired 3/26/70 (48:10)
S 3 : Ep 23
Aired 3/12/70 (48:05)
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