Global International Security Services Logo

800-668-8116

9465 Wilshire Blvd Suite 3011
Beverly Hills Ca. 90212

The Premier Private Investigator in Los Angeles

Let David Schassler assist you with private investigations worldwide!

David Schassler

David is a decorated retired New York Police Detective and is the owner of the finest investigation company nationwide. Global International Security Services takes your investigative needs very seriously. Our commitment to the citizens of both New york and Los Angeles is unparalleled in the investigation industry. If you are looking for an investigator to help you catch a cheating spouse, perform background checks for your company, perform asset checks, deal with Child custody issues or any type of matrimonial investigations, Global International Security Services is the Private Investigation company you've been seeking. Your concerns and investigative needs will be taken care of throughout the entire process. Our highly trained and dedicated staff provide background checks and criminal searches nationwide. Your results are up to date and confidential. We exceed expectations in every aspect of Investigation. We are your one stop intelligence agency. So whether it be a surveillance, voice stress analysis (lie detector test) counter surveillance, corporate security, skip trace, domestic investigation, executive protection, or even a hidden camera, Global International Security Services will handle the Investigation for you. David has two offices located in New York City, NY and Beverly Hills, CA.



New York Post

The New York Post describes David Schassler:

"Never assumes the direction a case may take!"




View Global International Security Services in a larger map

Global International Security Services

9465 Wilshire Blvd Suite 3011
Beverly Hills Ca. 90212

PPO # 16858
PI # 27394

Member of County of Los Angeles Superior Court
Panel of Expert Witnesses: Police Procedure

Serving the entire state of California

American Express Mastercard" Visa


© Copyright 2013 Los Angeles City Investigators. All rights reserved.