No
yes.
No such weapon. You need to see a gunsmith.
It depends on several things. Is is new or used, what model is it, and what condition is it in?
100-400 or so
Have it examined by a gunsmith. It can be chambered for either 9mm Luger or .380 ACP
50-800 usd
S&W never made a 25 ACP handgun for retail sale.
100-600 USD depending on condition, box, accessories, papers, etc..
Detective Alonzo Harris' guns are Smith & Wesson 4506 which he carries in a dual shoulder holster. They are .45 ACP semi-automatic. They previously have been used by many police departments.
Smith & Wesson made several different pistols in .45 ACP, including an M1911 pattern pistol. You'd have to be more specific about which model you had in mind before this question could be answered, as the different models vary quite a bit.
value depends on overall condition. perhaps $350 - $500
Semi Automatic Pistol in .45 ACP made by Smith and Wesson. It was a compact stainless steel version of the S & W 4506 with a 3 3⁄4" barrel on a smaller frame accepting 7 round single column magazine. It was produced from the late 1980's to jiust before the millennium (1999). It was well built and the one I shot was quite accurate, I should have bought it! The dash one (-1) at the end of the 4516 is the second engineering change; there were three changes total. Not a light weight gun, but very durable.