This is the answer from a large advocacy group:

Target individuals of gang stalking and mind control around the world

It's important to know that your local "Neighborhood Watch" groups are teaching these harassment tactics to your neighbors to create a destabilized community, and promote false community leaders that have ties to protected organized crime such as Drug Dealing and Human Trafficking! It's networked through your local community service organizations, churches, social clubs, etc...

Gang Stalking is stalking by more than one person to a victim, usually involving community harassment, or the "mob", using people from all backgrounds and vocations to harass, tracking 24/7, sometimes organizing lethal vehicle accidents, poisoinings, electronic harassment, home invasions/property destruction, corrupt or ignorant doctor diagnosis given to stamp the victim as bogus mentally ill with delusions, paranoia, or schizophrenia, etc. Everything is done covertly, and with a sophisticated real time dispatching system to organize the criminals' harassment and attacks, often in the hundreds to thousands of criminals participating as a coordinated mob at any given time while the criminals due their normal routines of work, shopping, commuting to and from work, leisure, etc., using the method of moving foot and vehicular surveillance techniques, and computers, cell phones, verbal and visual cues, and every other conceivable type of communication.

Often, the local network of this mob is connected to a national and international network - funding is done by illicit drug industry /crime syndicates, CRIMINALS working in corporate environments, and government sponsored terrorism for military weapons research using non-consenting human medical research testing.