A question about self defence and the law?

In a perfect world, your word should be equal to the word of others; however, you cannot expect such consideration. If such an event were to occur I would suggest that you explain that your knife was used in self defense, as a last resort. Police agencies generally look down upon any use of a knife in an offensive capacity, and you should therefore make it known that your use of the "tool" was in self defense only. If you are engaged in a defensive engagement where you utilize your knife, make sure to report it to the authorities immediately before your attackers have a chance to report you as the offender; regardless of whether or not you injure someone with the knife. If the police agency confies your knife, you have a right to request a receipt for the confiion of your property. Most importantly, if you engage offenders in a defensive capacity, make sure that you have a damn good reason why you didn't try to run away before defending yourself as most states require that you attempt to flee before attempting to defend yourself (an excellent example of the downfall of American society induced by liberal politicians).