Within any particular gang, there may be several subcategories; for example, Asian gangs can be divided up into Southeast Asian, Pacific Islander, Japanese, Chinese or Korean street gangs. Each group has unique characteristics that distinguish them from the others. However, they all share some general characteristics, or "profilers," such as tattoos, hairstyles and clothing.
Gang profilers have three functions within the subculture: They can act as a greeting, challenge, form of intimidation or an advertisement of a person's gang affiliation and/or belief system.
Members may share some or all of the profilers. And law enforcement officers may use these in making a "gang diagnosis." There is no set or minimum number of profilers needed-each case must be studied individually.
However, as with any categorizing system, there are going to be exceptions and the same holds true in this case. Law enforcement experts in the past few years have noted the existence of gang members who don't fit any of the profilers. A young adult who appears to be law-abiding, with no police record or prior police contact may still be a likely suspect for a violent, gang-related crime.
However, denial has led to delays in identifying gangs and gang-related violence in some communities. The "it can't happen here" attitude can be dangerous. This, in turn, leads to delays in suppression, intervention and prevention efforts.