  Historically, radio-equipment has solely been used as a two-way analogue
communication device. Today, the use of radio communication equipment is
increasing by numerous organisations and businesses. The functionality of these
traditionally short-range devices have expanded to include private call,
address book, call-logs, text messages, lone worker, telemetry, data
communication, and GPS. Many of these devices also integrate with smartphones,
which delivers Push-To-Talk services that make it possible to setup connections
between users using a two-way radio and a smartphone. In fact, these devices
can be used to connect users only using smartphones. To date, there is little
research on the digital traces in modern radio communication equipment. In
fact, increasing the knowledge base about these radio communication devices and
services can be valuable to law enforcement in a police investigation. In this
paper, we investigate what kind of radio communication equipment and services
law enforcement digital investigators can encounter at a crime scene or in an
investigation. Subsequent to seizure of this radio communication equipment we
explore the traces, which may have a forensic interest and how these traces can
be acquired. Finally, we test our approach on sample radio communication
equipment and services.
