People talking about tranquillizers and other sedative based ideas, they wont work. Things like that need to be carefully dosed for the person based on a number of things; size, weight, medical conditions etc, If they don't, the person could very easily die. Tranquillizers like other sedatives work by suppressing functions of the brain, suppress the brain too much and bam, you're dead. And in a chase the police don't have time to ask the criminal to stop so they can assess him and mix up the dose needed.
Because people thought tranquillizers were cool and harmless, this happened
http://en.wikipedia....Chemical_attack
same idea as a tranquillizer gun but in gas form.
Shooting the guy in the leg is safer than a random tranquillizer mix.
http://science.howst...anesthesia4.htm
this also highlights a few factors such as drugs and alcohol, and heart rate. If this criminal is or isn't a drug user, or alcoholic, you wont know when preparing the anaesthetic. Also, I doubt the guy would be calm and relaxed when being chased by guys with guns.
And even worse is we know nothing about bigfoot anatomy, so the tranquillizer you use is just stab and miss, which could turn into hit and kill.
Your best bet is a hole in the ground, stick mesh over it covered in whatever covers the rest of the ground and a pile of chocolate. It'll be trapped and you can drop some net on it.
Better yet, leave the damned thing alone.
Also, given chimps-which are significantly shorter and smaller than people- are four or more times stronger than people their own age, imagine an ape that's
bigger than you. Four guys holding it down? No problem. It'll swing them round by the chains and maybe do a few skips with it's new skipping rope. Not to mention, if you had enough people to match and overpower it, it could just pluck you up one by one. Unless, of course, you can stop it using those thumbs and fingers, cuffs keep the wrists together but don't stop you grabbing things.
So, seriously, leave it alone. You'll be happier and more alive in doing so.