throw (someone) off the scent

Translations
сбить (кого-то) с толку
The spy threw his pursuers off the scent with a clever disguise.
Шпион сбил с толку своих преследователей с помощью хитроумной маскировки.
Definitions
To mislead or distract someone so that they do not discover the truth or find what they are looking for, often by providing false information or creating a diversion.