Turkish Police Took Your Phone: do you have to give the passcode?

Under CMK 116 a suspect, the items on them, their home and their workplace may be searched where there is reasonable suspicion that evidence of the offence will be found there. CMK 119/1 says who may authorise it: a judge; or, where delay carries risk, the prosecutor by written order; or, where the prosecutor cannot be reached, a police chief by written order. Homes, workplaces and closed areas not open to the public are treated more strictly — there, only a judge decision or the written order of a prosecutor will do, never a police chief.

Seizing the phone then follows CMK 127. Where a judge did not order it, the seizure must be put before the duty judge within twenty-four hours, and the judge must announce a decision within forty-eight hours of the seizure itself; if that does not happen, the seizure lapses of its own accord. CMK 119/2 also requires the written order to state three things: the act that gave rise to the search, the person or item concerned, and the period for which the order is valid. An order that names none of this is worth examining, and that examination is part of any challenge to a search and seizure in a Turkish investigation.

Holding the device is one thing; opening it is governed by CMK 134, and the threshold is deliberately higher. Searching a computer or phone, copying its records and turning those records into readable text requires strong grounds of suspicion based on concrete evidence together with the absence of any other means of obtaining the evidence. The decision belongs to a judge. A prosecutor may take it only where delay carries risk, and must submit it for judicial approval within twenty-four hours; the judge rules within twenty-four hours at the latest. If that period runs out, or the judge decides otherwise, the copies taken and the texts produced from them are destroyed immediately.

This is not the regime that governs listening to your calls. Interception, recording and the evaluation of signal data fall under CMK 135, which applies only to a closed catalogue of offences — drug manufacture and trafficking (TCK 188), qualified fraud (TCK 158), robbery (TCK 148, 149), homicide, money laundering (TCK 282) and others — and is limited to two months, extendable by one — and, for offences committed within the activity of an organisation, extendable further by up to one month at a time to a maximum of three additional months (CMK 135/4). Data pulled from a handset and material from a wiretap are attacked on different grounds, which is why wiretap and surveillance evidence is treated separately.

There is no article of Turkish criminal procedure that obliges a suspect to hand over a passcode. CMK 147 sets out what must happen when your statement is taken, and the only questions you are required to answer truthfully are those about your identity (147/1-a). The same article requires the officer to tell you, before anything else, that the offence is explained to you, that remaining silent about it is your legal right (147/1-e), that you may choose a lawyer and have that lawyer present, and that a relative of your choosing is informed of your detention (147/1-d).

Pressure to obtain the code is separately prohibited. CMK 148/1 rules out ill-treatment, torture, medication, exhaustion, deception, force and threats; 148/2 forbids the promise of any unlawful benefit, which covers a suggestion that unlocking the phone will get you released tonight. Statements obtained by such methods cannot be used as evidence even if you consented to giving them (148/3), and a statement taken by police without a defence lawyer present cannot form the basis of a judgment unless you confirm it before a judge or the court (148/4).

What refusal actually costs you is the handset. CMK 134/2 provides that where the password cannot be broken, hidden data cannot be reached, or the process would take a long time, the device may be seized so that decryption and the necessary copies can be carried out; once they are, the equipment is returned without delay. In practice that period is measured in months, and a phone is often the only thing keeping a foreign defendant in contact with home.

Four requests are worth making at the scene, and each has a provision behind it. First, ask for the paperwork: CMK 121 entitles the person searched, on request, to a document describing the search and a register listing everything seized, and requires the seized items to be sealed. Second, if the phone is imaged, CMK 134/3 requires a backup of all data on the system, and 134/4 requires that a copy of that backup be given to the suspect or the defence lawyer, with the fact written into the record and signed. Foreign defendants routinely never receive that copy, because nobody asked for it. Third, CMK 131 allows the prosecutor, judge or court to order the phone returned once it is no longer needed for the investigation, on application as well as of their own motion, and CMK 127/4 lets the person whose property was seized ask a judge for a decision at any time. Fourth, CMK 141/1-j gives a right to claim compensation from the State where property was seized without the conditions being met or was not given back in time.

None of this is only paperwork. A conviction may rest only on evidence obtained lawfully (CMK 217/2) and only on material brought to the hearing and discussed there (217/1). Where a phone was read without the CMK 134 decision, or where the decision was produced after the reading rather than before it, the defence argument is about excluding what came out of that phone rather than explaining it — and that argument is built from the timing recorded in the file on day one. The order of events in the first hours after an arrest in Türkiye therefore decides more than it appears to.

If you are reading this from another country because someone has been detained and their phone taken, note that CMK 95/2 requires the consulate of a detained foreigner to be notified unless the person objects in writing, and that the practical steps for the family of a detainee in Türkiye come before anything else: confirm where the person is held, and get a defence lawyer to the station before the statement is taken rather than after.