I've been around Chinatown all my life when I was younger
There were the usual Chinese/ Hong Kong based gangs that pretty much ruled the area.... I wouldn't say there was much fighting for turf once it was established who "owns" what ie once a restaurant pays a certain group/ another will not extort it
There was a period when the Vietnamese tried to take control of Chinatown & they started targeting the small gambling parlours
One incident my dad told me about (his colleagues dad died in the inferno) the viets turned up & said loudly in their native tongue "any viets here better leave"
Now most of the patrons that didn't understand were Chinese/ and they barricaded the doors... Set it alight to send a message
I heard a few went jail for 25yrs
Anyway the viets lost in the end... Now fast forward to the last 10 yrs, Chinatown started seeing a huge influx of illegals coming over from mainland China
Another turf battle ensued.... These newly arrived guys had the numbers!! Word on the street was one new gang phoned a casino and said they were coming to collect money
When they turned up- they were met withn 20 guys...
A local waiter who saw the fight said one got hacked to pieces and tried to jump through a shop window/ ended up cutting himself up worse
But yeh haven't been anywhere near Chinatown in the last 10 yrs and no idea who's running what now... I would say the triads as they're known here or as Chinese call them "black society" (never hear this term tongs) much, mainly target their own
Eg a viet gangster would extort viet store owners. He wouldn't even bother with a Chinese owned store
http://news.bbc.co.uk/1/hi/uk/404814.stmHere's an incident from around 17 yrs ago... The dead victim was a member of the 14k triad gang/ he was very well known but not sure what, word on the street was he had a falling out with his own gang and they sent 7 cars full of youths after him
The chase lasted an hour and all the guys involved got manslaughter...