Opinion No.

Texas Attorney General Reports·Decided August 4, 1987·Published

Opinion

Mr. Don R. Stiles Executive Director Adult Probation Commission 8100 Cameron Road Suite 600, Building B Austin, Texas 78753

Re: Constitutional validity of electronic monitoring of probationers

Dear Mr. Stiles:

You inform us that the Adult Probation Commission is considering a proposal to permit the use of electronic monitoring devices as a condition of probation. The devices will be employed primarily to monitor a probationer's compliance with curfew hours imposed by the court. Some of the monitoring systems require the probationer to wear an electronic device attached to his or her body at all times; all require the probationer to have access to a telephone in his or her residence. Concern about the constitutionality of this use of electronic monitoring devices has prompted the following questions:

1. Do probationers have any constitutionally protected interest which would prohibit the use of electronic monitoring in the home as a condition of probation over the objections of the [probationer]?

2. Do family members or cohabitants [of] probationers have any constitutionally protected interest which would prohibit the use of electronic monitoring in the home they share with probationers over their objections?

3. Does the requirement of some systems that the probationer wear a device attached to his or her body at all times have any influence on the answers to questions 1 and 2?

4. Does the requirement of some systems that an electronic monitoring device be attached to the telephone in the home have any influence on the answers to questions 1 and 2?

In our opinion, the employment of electronic monitoring devices as a condition of probation does not violate a constitutionally protected interest of the probationer or a third person residing in the probationer's home. Neither do we believe that the attachment of the particular devices you have described to either a probationer's body or a telephone in his home violates any constitutionally protected interest of the probationer or a third person residing in the probationer's home.

I.
In your request letter you describe three types of electronic monitoring systems under consideration. The first type of system is called an "active" monitoring system:

Active monitoring. This requires that the probationer have a standard telephone in his home. A monitoring device is hooked up to the phone. The probationer wears a device that transmits signals which the monitor can detect within a certain small radius. The monitor is connected through the telephone line to a computer which is programmed with the schedule that the probationer has been ordered by the court to observe. Communication between the monitor and the computer shows whether the probationer is at home at the time he is supposed to be.

A fuller description of the active monitoring system was provided in a report recently issued by the Texas Criminal Justice Policy Council:

The first type of these systems, referred to in the earliest literature as `active' systems consists of a transmitter unit, a receiver-dialer unit, and a central office computer or receiver unit. A transmitter, which is strapped to the offender, broadcasts an encoded signal to the receiver located in the offender's home. The receiver is connected by the telephone to the central office computer or receiver unit. When the transmitter being worn by the offender is within range of the home receiver, the system indicates that they are at the residence. When the offender goes beyond the range of the receiver unit, i.e., leaves the home, the signal from the transmitter is not received and the system indicates absence. If the offender leaves home during an unauthorized period, in violation of their curfew, a violation report is generated. If, however, the offender leaves the home at a time they are authorized to do so, the times of arrival and departure are noted, but no violation report is generated.

J. Vaughn, Electronic Monitoring of Offenders 6 (July 1986) (prepared for Texas Criminal Justice Policy Council) (hereinafter cited as Electronic Monitoring).

The second type of device described in your letter are the so-called "passive" systems:

Passive monitoring. This also requires a standard telephone and a monitoring device in the home. The device worn by the probationer does not send signals, but must be placed in the monitor when the central computer calls the probationer's home at random intervals during the periods when the probationer is ordered to be at home. The monitor verifies that the correct device has been used to respond to the call.

The Criminal Justice Policy Council report provided this description of passive monitors:

A second type of unit utilizing telephone lines for communication has been referred to in the earlier literature as a `passive' system. It consists of a central office computer, an encoder device, and a verifier box. The encoder device is worn either on the wrist or ankle by the offender. The computer is programmed to generate either random calls or to call at specific times to the offender's home. The offender is required to provide voice identification and then insert the encoder device into the verifier box, confirming their identity. The system will provide exception reports if the phone is not answered, if a busy signal is received, if an operator intercept message is detected, or if the offender fails to properly insert the encoder device into the verifier box.

Electronic Monitoring, supra, at 6. The report explained the difference between active and passive systems in terms of the amount of monitoring accomplished by each type of system. "Active" systems operate continuously and monitor the probationer from the moment the transmitter is within the range of the receiver. In contrast, "passive" systems are activated by the telephone calls from the central reception office and operate only for the duration of the telephone call. Id.

The third type of monitoring system under consideration does not require the probationer to wear any device at all but does involve the use of a telephone. A centralized computer makes telephone calls to the probationer's home at random times during the period in which the probationer is required by the court's order to be at home. The probationer is directed to repeat selected words and phrases or to answer a series of questions. See Electronic Monitoring, supra, at 6. The probationer's voice is then electronically compared with a voice print previously supplied by the probationer.

As of July 1986, electronic monitoring systems of one type or another were in use in eight states. Electronic Monitoring, supra, (Appendix D). The state of California recently enacted a statute authorizing the use of electronic monitoring devices as part of a three-year home detention pilot project. Cal.Penal Code § 1203.015 (West Supp. 1987). The Texas Legislature recently approved the employment of electronic monitoring devices in probation and parole programs, but its provisions affect probations granted or modified after September 1, 1987. Acts 1987, 70th Leg., ch. 1, §§ 7, 15, at 1, 14 (S.B. No. 215). This opinion does not address the constitutionality of the provisions of this legislation. It addresses only the general question of the constitutionality of electronic monitoring devices.

II.
The Adult Probation Law states that the terms and conditions of probation may include, but are not limited to, those conditions expressly provided in the act. Code Crim.Proc. art. 42.12, § 6(a).

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