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Inquire now for a FREE consultation with a confidential private investigator at SPI

Private investigator Derby

Private Investigator & Detective Agency Derby  

Private Investigator Derby

SPI offer private and corporate investigation services to private clients and local businesses across Derby. The services we provide include open source background checks, TSCM bug sweeps, covert surveillance operations, trace searches, vehicle and asset tracking plus much more. With 10+ years experience operating in the investigations industry across Derby and the further East Midlands region, Sentry Private Investigators routinely provide highly skilled investigative services to support our clientele. We pride ourselves on the professional detectives that keep the business running from day to day. From former military personnel, police officers and other government agency operatives, we use the very best in the industry to achieve outstanding results. 

SPI Professional Associations

ABI Logo

Association of British Investigators

Armed forces covenant bronze award

Armed Forces Covenant Bronze Awarded

UK PIN logo

UK Private Investigators Network

Private Investigator Derby Services

Professional, Cost-Effective Private Investigators in Derby

Achieving excellent results and providing the best customer service to our clients is what we strive for day in, day out. Our private investigator Derby services are tailored to the needs our of clients in order to maximise the chances of securing the factual based evidence needed in the most cost effective way. Our private investigations are delivered with the up-most professionalism and with a focus on keeping service costs as low as possible. If you require professional, and low cost private investigator services in Derby, call SPI today.

private investigator derby
Values and Standards of a Private Investigator in Derby


Our private investigator Derby services are delivered with integrity and professionalism on all accounts


Our private investigations are conducted with robust ethical standards and accountability at all levels


The private investigator Derby services we provide are in compliance with UK privacy and data protection laws


A quality service at a cost effective price is what we deliver with both our private investigations and corporate investigations

Hire a Confidential Private Detective in Derby 

Sentry Private Investigators are registered Data Controllers with the Information Commissioners Office (ICO). We are also on the approved list of investigative providers with the Association of British Investigators (ABI) and the UK Professional Investigations Network. When seeking private investigator Derby services, the approach of ensuring your investigation is conducted in a legal and ethical and ethical manner is paramount. SPI ensure all investigative services are practiced with UK privacy laws and data protection laws being adhered to. So, if you require the services of a private detective in Derby, you have come to the right place. To contact a private detective agency in Derby email SPI at

Private Investigator Derby Questions and Answers
private detective Derby

Q. I suspect my partner is having an affair, how can a private investigator Derby prove this?

A. Infidelity investigations generally require covert surveillance operations to evidence any matrimonial affairs. Throughout operations, SPI gather factual evidence through means of high definition video obtained via our covert camera systems. We evidence where the suspected cheating partner is going, who he or she is meeting with and what they are doing together. We also provide technical surveillance services which include GPS vehicle tracking and covert camera deployments. See our Technical Surveillance page for more information.

Q. Is covert surveillance legal?

A. Quite simply, yes. Covert surveillance is legal providing the client has a legitimate interest as to why he or she requires the service. If a husband or wife suspects infidelity within the relationship, then he or she does has a legitimate interest for the surveillance. If a business owner suspects an employee has submitted a fraudulent workplace injury claim, then the business owner has a legitimate interest for conducting surveillance.

derby private investigations
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