Which of the following is true about electronic surveillance? Select all that apply.

A. Police must obtain a warrant to monitor telephone calls.

B. Police may place surveillance devices on suspected criminals' phones

C. Police can plant viruses on smartphones of suspected drug runners.

D. Private citizens can monitor other people's telephone calls.

E. Private citizens can record their own telephone calls in most states.

Police must obtain a warrant to monitor telephone calls.

Option A

Explanation:

The Supreme Court of America has made and landmark judgements in electronic surveillance like tapping phone calls and accessing the phone records.

It stated that without a proper warrant if the police department carry out electronic surveillance means it amounts to be illegal, it is a breach of privacy of individuals.

So, the top court has issued guidelines before proceeding with the electronic surveillance. This judgement of preserving the right of the individual is considered to be the major policy decision taken by the court.