Fill in the gaps with appropriate preposition: All the stolen mobiles will be seized_______ the local police in charge.

- The preposition 'by' is used 'usually after a passive verb, to show who or what does, creates, or causes something.

For example:
- I was frightened by the noise.
- A novel is written by him.

সুতরাং, পূর্নাঙ্গ বাক্যটি এমন হবে:
All the stolen mobiles will be seized by the local police in charge.