Prohibits and penalizes wiretapping

Willful or knowing commission of prohibited acts, or aiding, permitting, or causing them, results in:
- Imprisonment ranging from six months to six years.
- Perpetual absolute disqualification from public office if the offender is a public official during the commission.
- Deportation proceedings if the offender is an alien.

Peace officers authorized by a written court order may legally conduct wiretapping or interception for crimes involving:
- Treason, espionage, provoking war, piracy, mutiny, rebellion, conspiracy to commit rebellion, sedition, kidnapping, and offenses against national security.
Conditions for issuance of authorization:
1. Reasonable grounds to believe the crime has been committed, is being committed, or is about to be committed.
  - For rebellion and sedition-related offenses, prior proof of actual commission is required.
2. Reasonable grounds to believe evidence essential for conviction or prevention will be obtained.
3. No other readily available means to obtain such evidence.
The court order must specify:
- Identities of persons whose communications will be intercepted.
- The relevant telegraph or telephone lines.
- Identity of the peace officer authorized.
- Offenses involved.
- Duration of authorization, not exceeding 60 days unless extended.
Recordings must be deposited with the court in a sealed envelope within 48 hours after the authorization period.
The court controls the disclosure or use of recordings, which may only be accessed with notice and hearing to the concerned parties.
Jurisdiction lies with the Court of First Instance in the area where the acts are to be executed.

Communications or information obtained in violation of the Act are inadmissible in any judicial, quasi-judicial, legislative, or administrative hearings or investigations.