An in-house security guard is a professional hired by a company or organization to provide security services at their premises. Their primary responsibilities may include protecting the property, assets, and people on the premises, monitoring security cameras, and responding to emergencies or security incidents.

In-house security guards may be armed or unarmed, and their duties may vary depending on the specific needs of the company. They may be responsible for conducting security patrols, monitoring access control systems, investigating security breaches, and coordinating with law enforcement or emergency services as necessary.

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Overall, in-house security guards play an important role in maintaining the safety and security of a company's premises and assets.