Soju is not a weaker vodka; I can assure you of that.
Except, it generally is. Most vodka has an ABV of about 40%. Soju on the other hand has a usual ABV in the 16-25% range. Some can be higher, but we're talking normal products here. There is stronger Soju just like there's stronger Vodka, in general though, it is weaker.
Soju ranges from 12%-54%. Plus, soju is not well-distilled; it has impurities that vodka does not.
Edited: We're likely both right. I was in Korea in 1999; back then the alcohol ABV values were quite a bit higher than today. I am also going to guess that the soju ABV content was skewed quite high around the Army bases. For reasons. I also could be wrong. It's been known to happen.
Soju is to Korea as sake is to Japan. OP mentioned Korea so it's unlikely a mistake. And Sake is a similar rage for abv. It's naturally brewed and not distilled. Most yeast dies around 20% abv so virtually no naturally brewed product can get stronger. Vodka and other spirits are distilled so the skys the limit. Most are 40% for historic tax reasons.
I had a friend have an accident, got pissed about it, and while he was waiting for the tow truck went to a bar and got drunk. When he came out he was arrested ands charged with a DUI.
Police hate him; Soju manufactures love him; How one man was able to get out of a DUI with this weird trick
Seriously though, what stops this from being a go to strategy for anyone pulled over on suspicion of a DUI? I guess you could argue it's tampering with evidence?
In Germany, you could be hit with a DUI up to 6 hours after your incident.
Meaning if you got into a crash and then went home. You decide to take a drink to calm your nerves, and then the police knock on your door 3 hours later... You'll still get a DUI.
I remember an episode of the lawyer series “The Practice” about something similar — where the client calls his lawyer because he’s been pulled over for DUI and the lawyer tells him to step out of the car and start drinking in view of everyone.