
Cell site simulators used by RCMP not capable of intercepting private communication
A complaint was filed against the Royal Canadian Mounted Police (RCMP) alleging that it used cell site simulators (MDIs or "Stingray" devices) to monitor large groups, intercept private communications, and extract encryption keys without public knowledge or consent. The RCMP confirmed its use of MDIs, stating they only collect unique device identifiers (IMSI/IMEI) and are not capable of intercepting private communications. The Office of the Privacy Commissioner (OPC) investigated, including a technical demonstration, and found that the RCMP's MDIs are indeed not capable of intercepting private communications. The OPC also reviewed the legal authority for MDI use, finding that for 113 out of 125 deployments, prior judicial authorization was obtained, and for 7 others, exigent circumstances applied. However, in 6 instances, the RCMP deployed MDIs without prior judicial authorization or exigent circumstances, which the OPC found to be a contravention of section 4 of the Privacy Act. The OPC noted that the RCMP has since taken steps to remedy this by requiring prior judicial authorization for all MDI deployments unless exigent circumstances are present. The OPC also found that the RCMP's handling of third-party data collected by MDIs, including segregation, security, retention, and destruction, was appropriate.
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